Well it's your call if you want to switch ecosystems over a freak accident. This is the first time I ever heard of anyone having a loose screw and then it going on to do damage the way it did. I'd say the odds of another loose screw are next to zero.
PC build quality is far inferior. I used to service PCs and loose hinges and loose charging jacks (which would no longer charge PCs) were extremely common among all brands of laptops. Not sure how they will be now.
PCs also tend to be plastic and have overall less pleasing aesthetics, not to mention inferior OS experience, but if those things never really bothered you or you don't care then go for it.