Attrittion let's you tank a ton of damage and allows for arrogant gameplay that would otherwise be impossible.
Depending on the activity this can be fun for a change.
There are so many ways to heal these days that it doesn't even matter. If anything, it's a bonus because you have access to even MORE heal sources to play aggressively.
Honestly, any of them like Attrition, Togetherness, all of it is so terrible. They should instead bring back something like Daybreak. A perk that actually helps us instead of hindering us like a lot of perks do.