Football at a time was far more physical. Players could get away with certain things which in turn allowed people like Claudio Gentile, Vinnie Jones and the Butcher of Bilbao to exist. That doesn't mean that every defender was a brute. You had absolute giants like Baresi, Scirea, Maldini, Vierchowod playing football who were a joy to watch and way better than the defenders we have today. Those who lacked such defenders could rely on the catenaccio who was in vogue at the time. If you add those three elements together (physical football, top defenders and a defensive oriented style of play) then the result was a football which made it almost impossible for strikers to play in. In fact between 1980 and 1990 there was only 1 league tops scorer who scored more then 20 goals and that was Aldo Serena in 1988-1989 season. Maradona (15 goals), Van Basten (19 goals), Platini (16 goals, 20 goals and 18 goals), Vialli (17 goals) and Virdis (18 goals) came close but they didn't reached the threshold. To compare it to today, Immobile scored 27 goals last season which is still less to the 36 goals in 2016-2017 and an ancient Ronaldo scored 29 goals in 2020-2021. You notice the difference in stats? Does that mean that Immobile is far better then Platini, Van Basten or Maradona? Of course not.
My point is that today's football is stacked heavily around the forwards. Football is less physical, there's elements like sports science, sports psychologists, data analysts and fitness specialists to aid the player and there's more protection around the player from abusers (including the club itself). That needs to be taken in serious account when judging an old player with a new one. As said, if Maradona played in modern football then he would be unplayable. Its a shame that jewels like Maradona and Van Basten weren't given that opportunity.