The problem is each person's "average" is very very different, elitist think it is average to just roflstomp and quickly do any kind of encounter efficiently and anything below that is "omg noob casuals never improve ultra bad, i am leaving, you are hopeless", that is not average, that is an inflated requirement to get their fast efficient runs certain people seem to be entitled to for some reason.
The devs on the other hand understand that an average is needed so they implement min.ilvl caps since you cant quantify average performance checks, now issue with most mmorpgs is that utility is not taught or needed as much in most of the content since 90% of the content can be done easily even without using utility which leads to people not knowing or not using it often.
The solution to that is simple, you make utility as vital as combat, you make utility needed to be used in all forms of content even at lower end or you either die or if you really feel like that is too much, you are incredibly inconvenienced if you ignore using your utility such as getting stunned for a while, knockback and in other ways have your combat disrupted.
My point about WoW is that the elitist git gud crowd whose ego depends on video game achievements is extremely toxic, and if they start listening to them we get the same situation we see in WoW, it starts friendly and nice like that "we are just trying to help people get better" and leads to them demanding casual content be nerfed because they are "forced" to do it for the rewards which is why I am thankful that it honestly seem SE devs have been studying WoW and know what not to do.