Anyone else feel like you never hear when that one random squad you forgot about gets engaged in combat but you ALWAYS hear that they've been wiped out? Just a random observation of mine.
It's probably a focus thing. You hear about your squads getting engaged all the time so it frequently becomes white noise if you've got better things to micro. Losing a squad, however, is significant and
bad no matter what you're doing so that throws you out of it.
Reminds me reading about a development note for Age of Empires 2, they mentioned playtesters complaining there was no warning noise for their towns being under attack...that warning noise was working just fine, the testers turned out to be just focusing too much on something else.