They're trying to come up with a new way of modelling the foundations of physics. In order to be "even wrong", they need to make falsifiable predictions. As far as I can tell, they're not at (or claiming to be at) that level of maturity of the model, they seem to be slowly working toward feature parity with existing models. Whether they ever achieve that remains to be seen. Whether they manage to coalesce all this into a single coherent theory remains to be seen. Whether they manage to make novel, falsifiable predictions or not remains to be seen. And if they do, whether these predictions will be falsified or not also remains to be seen.

Long story short, I don't see why being "not even wrong" at this phase is some great sin.