Supposedly the reason for WWE and NXT's recent string of injuries and people getting busted more often is due to some dumb edict WWE management passed a while ago where they wanted talent to be a lot more stiffer against each other during matches.
Also seems this might have caused a spike in concussions and concussion-like symptoms to happen in NXT as a result.
Observer's Bryan Alvarez reported that this edict was passed well before AEW started their weekly tv series and likely not as a reaction to anything from AEW.
https://411mania.com/wrestling/wwe-t...st-each-other/