Because the attackers successfully exploited it. And therefore it's something we need to prevent from happening again. The problem is there isn't an easy technical solution, this is is a social/medical issue that they exploited.
Slowdowns happen for all kinds of reasons. Life comes first. The explanation behind the slowdown wasn’t relevant here or a factor in the attack. They exploited the growing need for a co-maintainer. Airing the dude’s medical issues, particularly out of context to an unintended audience, isn’t awesome.