The original games in the 90's? Yeah, probably. But cost of living was very different (so even if they made > 100k after adjusting for inflation, it went a lot farther), and the standards of games were much lower.

You can definitely make Doom 1993 with 1-3 people today (and without crunch). Making Doom 2016 levels of fidelity (even if we ignore the excellent optimization) would still be a very lofty task for 10 people. We still don't really have that many "full stack game devs" that can work at that scope and fidelity to bring the team size down.