Are you qualified to worry about such violent events inside electric motors? I wonder why Musk didn't think of that? 'Cause everyone knows glue will fail.
I think you discovered the "fatal flaw" of the Model 3.
Putting the "rational" version of my thinking cap back on, it just occurred to me that it might not be a good idea to base your beliefs of such advanced technology on Munro's comments. One of the most common themes running through all his Model 3 videos is that there are a lot of things in the Model 3 that he just can't figure out why they designed things how they did. He probably said "I don't know why they did they did it like that" 100 times.
Of course he doesn't understand the Model 3, it's not made like other cars. The fact that it's engineered to be better than other cars goes right over his head (because "different" is a bad quality in his world view). The funniest thing is he raves about the handling/driving dynamics while simultaneously claiming they made the chassis too strong "it's overbuilt" and questioning the use of the more expensive composite suspension wishbones as if the engineers didn't know what they were doing.
It's actually hilarious that he can't see that his ignorance is the primary reason why he can't figure out why Tesla made the design the way it is. For example, he thinks the battery pack should be a stressed member of the chassis. He obviously doesn't understand that batteries can catch on fire in violent collisions. It is the equivalent of saying the gas tank (of an ICE vehicle) should be a stressed member of the chassis to save on cost/weight.