Ah, so you prefer your phone just shutting down unexpectedly when you open your picture-taking app, update the public transportation app to buy a ticket because they updated the server, or exit the metro into the freezing cold of winter? Right.

Not an Apple customer (never was, probably never will), I use a Samsung Android, and I wish my phone were doing that performance limitation thing, because I do feel the issues caused by unexpected shutdowns on a daily basis. I constantly carry an extra battery to be able to reboot my phone when that happens.