I only ever hear this line of thinking from creators, never from readers or fans - except some fans of James Bond movies. This was the thinking that led to One More Day and the New 52 over at DC. In general I find it toxic and that it goes against what Marvel stands for. Peter Parker graduated high school just a few uears after he was created. In the early 2000s every Batman event was exactly the same - Batman is a huge bat-jerk to his friends and allies and learns to be nicer at the end, and fans hated it. We notice these things. The whole point of the Claremont era was that the characters evolved and changed - and the problems started when editorial forced many of those changes to be undone to revert to an older status quo. One of the reasons the Krakoa era seemed so exiting was because it brought the promise of real change. If readers wanted truly static comics then DC would have continued to dominate the industry in the 60s and onward and we'd still be reading the sort of Batman and Superman comics they produced in the 1950s.