Players aren't in a competition with each other for damage output. It is a cooperative game about storytelling so it's spotlight that matters - how much impact a PC has on the story. Calculating spotlight time requires examining all three pillars, not just combat.
If your game is nothing but combat and your combats all amount to nothing more than a race to get Team Monster to 0 hp, then yeah, those feats are going to seem "off." For everyone else who engages with all three pillars of the game and who design encounters where the enemy can be defeated through means other than hit point attrition, these feats are not an issue.
What percentage of encounters are defeated without combat in modules designed and put out by WotC? The ones who wrote this Page 2 you keep mentioning. In my experience, over 80% of the encounters are decided by hit point attrition. Why would WotC endorse modules with such design if they didn''t consider combat the largest portion of the game?