True, sports do move on. The point I’m making is that that doesn’t mean the previous generation of players are rubbish in comparison to the current generations.
if previous generations of top players had had access to today’s training methods they would still, in the main, be top footballers. Gascogne, Best, Pele, Cryuff etc would still be great players IMO. The players today who are based on ‘covering every blade of grass on the pitch’ runners/athletes would not have made it back in the day.
Ultimately, you can’t compare. It’s comparing apples with oranges which is why to try and downgrade previous generations of footballers is wrong.