The true reason we have made little progress in the past 20 or so years (and a 20 year slouch is historically nothing unusual) is that pretty much all data we c

The true reason we have made little progress in the past 20 or so years (and a 20 year slouch is historically nothing unusual) is that pretty much all data we collected in that time frame confirmed the standard model. It's the one big dilemma cosmology has. The standard model (LambdaCDM) works unreasonably well. Our problems with it are largely theoretical. New data is also hard to come by. Look at how long it took to plan, build and launch Euclid, cosmology's big hope of finding new physics. The hubble tension from the OP's article is already the most interesting discovery since 1998 when evidence for dark energy was first seen. And trust me, all scientists know that all models are wrong. This isn't some unique insight that is beholden to amateur scientists on the sidelines.