It doesn't matter how he throws it or when he did it. He did it.
Yes it does. Sometimes crap happens.
I'd be more worried if he gave up only 3 solo HRs.
I would love to know if any study has been done on balls that are hit for singles, what the likelihood is that they could just as well have been outs if they were a foot to the left or right. There is a lot of randomness in whether a batted ball is a single or an out sometimes. Whereas HRs and doubles are well hit.