I think if AJ had fought a prime Tyson, he wouldn't be in any condition to take two belts and throw them on the floor.
Tyson would have stomped on his testicles that way AJ can feel his pain from seeing him throw his belts over the ropes like gawbage. This content is protected
If AJ came out of the fight in one piece, he still wouldn't throw Tyson's belts on the floor because he would have a pretty good idea how Tyson would react. But if Joshua was stupid enough to do it, I think we would have seen something similar to the James Butler - Richard Grant incident.