It's hardly a bad patch though. He's been error prone for a good year now and hasn't shown anything like a consistent run of good games. The performances of other goal-keepers are hardly relevant, especially when you've acknowledged that they also received criticism. I'd say if anything the criticism aimed at Hart is about fair, especially considering how it's only been a recent thing for the British media to actually acknowledge that he's made an error. You've also completely ignored the stuff about him being cocky, which is precisely why so many on here dislike him, and are possibly more critical of him when he does make errors.
I'm not really sure what your problem is with the reactions on here. He's made countless errors already this season and we're only in October. He's managed two this week for feck's sake. He's a cocky bastard and has been shielded from a lot of criticism by the media for a good length of time, something that hits home particularly hard here because our own keeper was subject to a bit of a witch-hunt for a while, whereas old BraveHart could do no wrong.