This model has been in testing for 3 years and it passed all tests so far.
It already past sevral test and it solves a lot of problems that require dark energy or matter. And problems introduced by the James Webb telescope. It also confirmed cosmic chronometer findings on the expansion history.
It does not disprove models, it just shows that dark matter and energy are not needed and explains why we can’t find them.
Ok but if we aren’t going to be dismissive know it alls the JWT has posed a lot of new questions about the universe including pointing out that we very likely have quite a lot of things wrong in our established science regarding the universe