#3 Keeps everyone safe

Safety should be at the forefront of WWE's concerns throughout this pandemic and while the company has done its best to make that happen, there have still been quite a few incidents. In fact, between Roman Reigns dropping out of WrestleMania 36 due to health concerns, The Miz getting some kind of illness, and countless other talents in quarantine, it is becoming more likely that a shutdown is needed.
Beyond all that, WWE employs hundreds of people at the Orlando Performance center alone and also needs to consider the safety of those individuals. Yeah, WWE has tried to push on for as long as they could and they should definitely be commended for that effort, but the risk is becoming far greater than the reward.
In all honesty, WWE loses nothing by shutting down its doors for a while after WrestleMania 36. Furthermore, they actually gain so much by allowing themselves to regroup, come up with a new plan and keep everyone involved in the organization safe. WWE can always come back another day bigger than ever!