After the release of that bullet cluster study in 2006, the mainstream had extremely high hopes of justifying their exotic matter claims in the lab with LHC and other such experiments. The reverse has actually occurred. They've blown their billion dollar wad on the "hope" of finding something exotic at LHC, only to have LHC turn right around and blow away SUSY theory, while directly supporting every aspect of the standard particle physics model, right down to finding the Higgs, and verifying all the unusual decay predictions of the standard model perfectly.
Worse yet, the baryonic mass estimation technique that was used in that now infamous bullet cluster study was shown to be ridiculously flawed.
In short, in 2017, the mainstream has no logical justification for exotic matter. Their entire case amounts to a special pleading argument related to their nucleosynthesis needs, and BAO curve fitting problems they have without DM. In short, we must allow them to keep mythical forms of exotic matter in their theory, otherwise their model falls completely apart and it's falsified outright.
The mainstream can't even handle a real public online debate at this point. About the best they can do to try to stave off the inevitable rise of EU/PC theory is to blatantly misrepresent the facts like Bridgman and Koberlein, and to ban all dissent from their websites. The problem with misrepresenting the facts is that it ultimately destroys their own scientific credibility, and they risk losing their audience completely. They can't hide their invisible universe problems from the public by banning dissent on their websites and banning all discussion of EU/PC theory. There are lots of websites in cyberspace.
It's pretty much curtain time for the mainstream with the launch of the James Webb telescope IMO. They'll see galaxies for as far as they can see, and they'll be surprisingly 'mature' galaxies too, just you wait and see.
When you live in an infinite, eternal and electrically active universe, you can't pretend it all started with 'bang' and pretend that there are no E fields in space, and try to pretend that E fields have no application to solar physics.
The public seems to be steadily losing faith in LCDM claims now. Even some intelligent dissenters within the mainstream have to be losing faith in the invisible universe belief system. Empirical physics *always* eventually triumphs over metaphysical mumbo-jumbo, and this will be no exception. A theory that is 95 percent metaphysical fudge factor doesn't stand a chance over the long haul compared to a purely empirical description of the universe.
Photon redshift is *known* to occur in plasma, and that lab demonstrated process *must* play a role in the Hubble distance relationship. Space plasma would have to literally be "magic" to not have the very same effect on photons in space as it has on them here on Earth. In the lab, photons transfer and lose some of their momentum to the plasma medium. It must work that way in space too.
In 2017, having now spent *billions* of dollars/euros searching for exotic matter in controlled experimentation, there is still *zero* empirical evidence of exotic matter. That charade can't last forever.
If LIGO's so called "discovery" claims blow up in their face, the tipping point will probably happen sooner rather than later, but the mainstream cosmology theory is likely to reach the tipping point over the next decade or so, no matter what happens with LIGO. Unless Xenon-1T or LUX-LZ come up with a miracle, the exotic matter jig is up and the LCDM jig is up.
IMO LIGO will have some affect on the timing of the tipping process. If LIGO makes good on multimessenger astronomy, it will add some 'credibility' to the mainstream's beliefs in the eyes of the public, but most of that "benefit" has already occurred because most folks in the public just took them at their word the first time. More "successes" aren't likely to impress them much. Skeptics like me might eventually be convinced of the existence of gravitational waves by LIGO delivering on multimessenger astronomy, but it won't sway my opinions about LCDM theory one iota. Either way, it's not likely to save LCDM, it will just slow down the eventual migration to EU/PC theory.
The dark matter dilemma has become the Achilles heel of LCDM in 2017. Without finding it soon, the mainstream is toast. They've already spent billions of dollars on that search at LHC and various DM experiments, and they've come up completely empty. I think if they come up empty at Xenon-1T and LUX-LZ, even some die hard "believers" in the mainstream are going to start 'losing faith' and start jumping ship.