You have a computer with four sockets on both sides, you can plug into each of these holes a standard (non-Apple) cable, on the other side of the cable can be a standard USB-C (non-Apple) charger or a battery pack that can charge your laptop together with your phone and your gadgets. And yet, that's much less important than the glorified party trick.
Nobody is saying that USB-C doesn't have strengths but this was a feature which many people felt valuable for valid reasons. It's also annoying to lose since it'd be an easy change to fix by putting the safety release on the charger so you'd have the same protection in the most common configuration.
I have three Mag-Safe chargers in my drawer (one broken), from my previous laptops. If they're standard (USB-C) chargers, I would use them for something. So I hope Apple will not put any non-standard "safety releases" on their chargers in the future.
I hope someone will make a cable with something similar to mag-safe (I know there's couple of kickstarters, I don't know how good these thing works) so we can finally put this story behind.
Or, you know, Mac users actually use their laptops outside, and in situations where one might trip on the charger cable much more often than PC users with clunky "desktop replacement" behemoths.
Besides, one obviously cares more for a $2000+ laptop going flying off the table than for a $500 POS PC laptop.
See how both sides can play the flame game?
So when travelling you could use any available charger, but when in the home or office you'd have the safety of the breakaway mag connection.