They nerfed M+ AP rewards for everyone multiple times in BFA because a few players were doing more than everyone and getting more AP than anyone else. They lower M+ iLvl reward on the first few weeks of every patch because a tiny fraction of the playerbase farms high end keys all day and would get too much loot, so they just make everyone’s loot worse. A few players farmed what they thought was too much AP in Islands, so they nerfed Islands…for everyone.
You seeing the pattern yet? This happens Constantly. What those few players do affects you, you can choose to ignore it, but that doesn’t make it go away.
Also in Torghast in the Shadowlands Alpha, Blizzard was afraid that a few players might wait around for Cooldowns for every pull to be able to push higher floor levels, So they added Torments*, basically stacking debuffs if you took “too long” on a floor. Another example of a couple players making the game worse for everyone because Blizz balances around them.
*Note: Torments got reverted after nearly every Alpha tester gave very very negative feedback, though this kind of reversal rarely happens and everyone was really surprised they actually did remove them.
It the same difference between a +2 and a +7, the same difference between a +5 and a +10. It’s how M+ scaling works. If this only affects a fraction of a fraction, then why are 50% of ALL M+ Healers either Druids or Paladins when there are 6 healing specs? This affects everyone.
An equally geared Druid can do 5+ levels higher than a Holy Priest, because an equally geared Druid does at least 50% more healing than a Holy Priest in 5 man content and +5 level increase is ALWAYS 50% damage difference.
You keep saying it doesn’t make a difference because a Holy Priest “can” heal keys lower than 15s, but you are completely ignoring how easy it is for them to do so. I “Can” lift 100 pound box, it’s freaking hard and I can barely do it once, but I “Can”, a 300 Lbs weightlifter can do it much much easier. And when it’s Blizzard who arbitrarily choose 1 or 2 healers to be the weight lifters, you can’t sit there and say it’s all the same for everyone.