In EU_7 and NA_7, the AI was changed so bots can block in all directions, at the cost of not spamming attacks (they are a bit slow in terms of attacking).
In HRE server, they can only block down (stabs) but spam attacks like there's no tomorrow. It's on a quite old version, because it also has the old polestagger and some 2h stabs are bugged.
In the current official DTV, it's rare that bots spam attacks. They usually take hits more than they attack or block. I wish they could recover their attack spam while keeping the ability to block in all directions.