I cut my teeth on Doom, son. ;) I'm aware. And I flailed desperately for years and years, mostly due to my learning defects and low tolerance for frustration.
This is also arguably an example of the "well X was just fine why would we Y"? We didn't go to the moon for years and years, said people during the space race -- why bother now? It's a waste of money, yeesh.
Nobody knows what lies beyond their space if they refuse to innovate past what they are already comfortable with.