Yea that's terrible. If there was evidence of a (possibly) compromised, unsecured personal server, with high level officials talking about national security on it (including Bush) then I would think it would be even worse. But it is bad as is.
Also, I think Bush was a pretty terrible president in many respects and overall I'm not a fan of his.
If he used, or personally signed off on the use of, then he should have been held responsible. As well as others that did so themselves.
And Powell's recommendation that Clinton use a personal server is a perfect example of an arrogant, entitled, self-interested "leader" who only cares about political expediency and convenience for themselves at the expense of destroying government transparency and risking security leaks and hacks.
As a General who above all should know this better than anyone, he's a disgrace for recommending this, in my opinion.
If watching the pundit shows has taught me anything, it's that there are few classes of public figures more venal, hawkish, shameless, or blatantly self-serving than the military brass. It's a miracle they can convince anyone to follow their orders.
None of them broke any law, as laid out by Comey, who is famous for bashing heads with politicians. The law was executed by Comey faithfully and there was no crime to prosecute.