Am I the only one not too bothered about the reaction system - Post in favor of the auto reaction system. Best comment argues for prompts and the subcomment that argues against prompts gets -10 votes. 2nd Best comment argues for more control. 3rd best comment provides example of when the automatic system screwed them over.
Regarding your conclusion, take this one for instance. First, the upvotes for the comment itself are high. Second, the "top" comment specifically says it doesn't bother them, but they'd be okay with having smite and uncanny dodge. I hardly call that an endorsement.
And next: count the number of comments and votes. Now compare that to the number of people actually playing the game. The number of people who don't feel the need to complain about it. Likely because they're enjoying it just fine.