Except unlike other stalling rules that have some consideration of what has been happening in the match to call stalling, this rule has none. It’s a simple point in time of what the wrestlers are doing while going out of bounds. There is wrestling action, a push or no intent to remain in bounds. That was a ridiculous miss on the refs part not to call it.
The refs also missed an illegal cutback that everyone else could see clear as day, so your expectations should be adjusted accordingly.