I’m not sure it’s really to do with the standards of the players, which on the whole is much better these days.
I think football has adopted more in the way of set styles now. Not that there wasn’t any before but now you have the more rigid set-ups like Man City etc where players are really drilled to an inch of their life on patterns and where to go, what to do etc
Grealish is probably a good example of a player that was really exciting to watch at Villa who has fallen off by being forced into the machine that is City.
Even the very attacking teams are still quite strongly drilled and there not much inventiveness and teams are very focused on keeping possession, passing between themselves etc (again not bad things in themselves but can be boring when taken to extremes).
I think this makes the game today look worse tbh, or more dull because you get much less individual brilliance coming out and players doing much less interesting skills. It’s more a battle of the styles now.