Well, I finally watched this movie yesterday, with 0 expectations and I actually enjoyed it. I’m surprised to learn it jas >90% score on Rotten Tomatoes as I wouldn’t rate it that high, but I found it very compelling; I was actually looking forward to how they would come out of those bad situations this time. Characters were strangely well developed with backstory that didn’t make my eyes roll. Sure, not original, but well told. I was expecting a Netflix movie type (dull and somewhat boring) and ended up with a good pic. Hoping for a sequel.
Rotten tomatoes isn’t a direct quality rating, it is a percentage of reviewers who rated it favorably overall. So if everyone gave it a 7/10 it would be 100% on RT. I personally find that to be more accurate than trying to average exact rankings, especially since they have separate critic and audience ratings which helps when critics tend to dislike certain movies.
D&D: HAT was just a fun time, which is why most people that saw it rated it favorably. A big part was not being ashamed of the source material, which is what tended to drag down superhero movies prior to the MCU taking off.