I think most of the problems with the movie can be traced to pairing Fred Dekker and Shane Black. Shane Black is a decent enough director with a few actually good movies to his credit. The only thing I know Dekker from is Monster Squad, which sucks and is another Black and Dekker colab.
Frankly, with the way Hollywood is structured right now I dont think we were ever going to get a good Predator movie. Hollywood has obsessed with detached ironic smarm ever since the MCU decided detached ironic smarm was all the characterization they were ever going to need and turned it up to 11 but that approach was never going to work here. I know "Predator is actually a screwball comedy" is currently Avpgalaxy's newest meme, but it's a bad meme, you should feel bad for believing it and this Shane Black movie proves that goofy comedy Predator doesnt work. The first Predator had one liners but it was also very earnest about its central premise.