Originally Posted by
CentralPower
"Good for their time" only carries so far.
Michelinie's "Iron Man" run was ~10 years ahead of its time, which was impressible. But, that still makes it dated by ~25 years. And, when the standards of that time were low, being "good for its time" is less impressive.
It is not just Marvel. But, yes.
Old comics had ideas and themes. But, there was no dissection needed. Readers were beaten over the head with the moral of the story. X-books spent pages virtue signalling about civil rights (which was nonsense, as the X-Men do not work as an oppressed group), Spider-Man about struggling young adults, Captain America was polemical navel-gazing.