Note that this isn’t a “get out of dark matter free” card, as there are clear signatures of dark matter in the cosmic microwave background. https://physicsworld.com/a/dark-energy-spotted-in-the-cosmic...
Other lines of evidence like the one at your link just increase the ability to test their theory (which is meant to solve some quantum gravity problems at very small length scales) at very large length scales.
They are not motivated by the desire to prove MOND is correct or that cold dark matter doesn't exist. Rather they can show that in certain restricted circumstances their theory allows for nearly-MOND-like orbits. So their theory survives a small but important hurdle imposed by our observations of nature (we observe MOND-like orbits).
Elsewhere in the comments someone asked the good question of (highly paraphrasing) whether this success is wiped out if a distribution of dark matter is added to their SdS-like universe as the generator of some of the observations normally taken as proof of \Lambda-CDM. That question is closely related to the final sentence in the quote above, and answers are hard to guess at.
Why the inflationary epoch of course.
https://en.wikipedia.org/wiki/Inflationary_epoch
I'm saying the very notion of the big bang warrants more scrutiny. All singularities do.
The arrow of time can survive local entropy reduction, but probably not what you're talking about.