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.
I assume it’s all the same “tired light” stuff. It feels like a few researchers keep trying to drum up hype for the idea in the mainstream media because they can’t convince the actual experts. The media loves fringe ideas which claim to upend the status quo, but there’s a massive difference between sensationalism and truth.