It’s not a scientific theory no matter how much they cope. They promised to derive the Standard Model parameters and haven’t done so. They yap about Hawking radiation derivation when it only works in 11 dimensions with the negative cosmological constant. We observe the positive one. They need supersymmetry, but minimal SUSY has been ruled out by the LHC. That’s just the experimental side of things.
On the theory side, they claim that their theory doesn’t require renormalization but apparently there are no concrete calculations proving so. It’s just a conjecture. They still can’t justify a unique compactification. And most importantly, we’ve had M-theory for 25 years now and nobody knows what the fuck it even means.
They are in full cope mode rn grasping at straws by calling their bullshit a “framework” and telling fairy tales about how their garbage will help us understand gauge theory, even though they haven’t contributed to anything gauge theory related, not even basic calculations. All their crap about how Feynman diagrams reduce to a single string diagram is useless. And don’t even ask them about the more practical aspects like how their theory explains neutrino oscillations and the strong CP problem. They don’t know and don’t want to know because they’re too busy doing amateur math