Pretty simple request. The last time our Companions had a smidgeon of developer attention was when Accuracy was removed in 2017 patch 4.0 (despite the fact that they still have an accuracy trait, go figure).
I can't count the number of times by 'Boco Buddy has bit the dust because I have him on healer stance and he decides he has to stand RIGHT next to me at ALL times.
Not to mention that while he is moving, he can't cast, causing me to bite the dust numerous times.
So please. Make their heals instant cast, give them a simple Stay command, or make them immune to damage so they're not dying to simple avoidable attacks.