For what it's worth... Here's my tuppence worth... A good photograph doesn't need to be sharp. Yes, I've said it, a good photograph doesn't need to be sharp. So what do I mean, well, there are many examples of good photographs that stir the heart. That are not sharp. It really depends on what the photographer mean to take or, in some cases, a lucky shot that is out of focus but works. If the out of focus photograph peaks your interest then it's a good photograph so it all depends on who is viewing it and whether it was mean to be unsharp or not. Think I'm right in saying we have all taken a photograph that wasn't perfect but it really meant a lot in some way. If it's taken for, say, forensic reasons then yes, it needs to be pin sharp but when it comes to general photography or even the professional photographer, out of focus or unsharp photographs can work really well.
I don't mean to step on anyone's toes are upset anyone but, as I said, it's my tuppence worth.