How would the old school NBA players feel about this being a foul call

HIGHLIGHT Kawhi Leonard commits a foul while complaining about not getting a foul

Ben Simmons fouled out again He finished the game with 7 pts on 25 shooting and 35 fts 3 rebs 8 asts 1 stl 5 turnovers and 6 fouls Hes has fouled out in 3 of his last 4 games