>>11582279AEW and even WWE have used "real glass" plenty of times. Any spot where somebody goes through a car windshield, like Jungle Boy did, is going to use "real glass," but car windshields are made from laminated glass which is is a type of "safety glass" specifically designed to prevent it from breaking into large shards.
The story leaked from an "anonymous source" around the time Punk was getting a lot of heat for throwing tantrums and sending people home from Collision. It conveniently framed Punk as being a real locker room leader who had to provide guidance to a young wrestler. It conveniently left out any specifics of the planned spot, just stating that it was to use "real glass." If it were to mention that the spot involved taking a bump on a car windshield, something that has been done numerous times in AEW and WWE, it's likely that fewer people would have taken Punk's side. You still have people acting like Jack Perry wanted to go through a pane of plate glass or something.