Every player who has ever played has complained about artificial turf, how hard it is, concrete base. Most of them say that outside of concussions, they are twice as sore after a game on turf, even their feet and ankles hurt. We’ve seen more concussions from heads hitting the turf than from player collisions, not to mention all the blown out knees.
The only reason turf is so prevalent is because of all the outside events that owners can host that couldn’t happen because real grass wouldn’t hold up to it. Greed is always the foundation of everything the league does.