Just go and watch a game from the 70s (plenty on youtube) and tell me the skills were better.I reckon it started going to shit when we stopped recruiting footballers, and started recruiting athletes.
Less drinks, smokos, true footy nous and skill… and more fumbly mistakes on field and easy missed shots on goal because it wasn’t old school footballers playing the game anymore.
Not just fitness and running - actual skills.
EG - Up until about 1980 it was an absolute cardinal sin to kick across your defensive goal (I'll not post the obligatory 'Simon Beasly vs Collingwood' vid) - now players do it regularly 50 times a game (it's called a 'switch') and we only get excited on the few occasions it comes unstuck.