It all comes down to personal flavor.
I agree that that is some of the best armor I have ever seen for a healer, PC or supporting character. Because of guiding bolt, whether you use Shadowheart or make your own, your healer will have a decent dex bonus. You put that armor on your healer and load them with the extra healing potions, now that Larian has fixed the throwing of sacked items, and you can throw potions on your people at range, allowing them to disengage. This is huge in a game where they take opportunity attacks seriously.
Personally, once I equip Lae'zel with Everburn, the only time I change her weapons is when I need to break through walls or when I'm mining. Yes, the extra +1 to hit is nice, and the option of the shield spell is okay, but I find most encounters go too fast to use the spell and the party gets to 4 so fast that the +1 is of nominal use at best. But that is just how I play through. Everyone is gonna play it a little differently.
