You may be right, but can you say it’s not nice to have more variety in difficulty? Nobody’s forcing anyone to git gud, just as nobody’s forcing anybody to stay on that lazy river lfr ride.
Let’s be honest, they’re needed less these days. For example when I was running that Ulduar timewalking, during one of the encounters, there’s an important mechanic I kept missing because I couldn’t see any indication of it. It was just a tiny, pale blue swirly on the ground.
These days it’s super shiny in your face spell vomit and impossible to miss… unless you’re more focused on your second monitor with Netflix streaming.