That’s more of a WoW thing..
*Mukluk has a great series (Get to the point) that breaks down complex boss fights and their mechanics in Guild Wars 2.
Check it out if you wanna see where MMO’s were about a decade ago.
Again, that’s an old MMO mechanic.
*GW2, FF14 and many others now give each player built in healing spells.
Each class does it in a different way and has various pros/cons to their utility spells.
Ironically something that’s been annoying “healers” in FF14 a lot more with each expansion due to how unneeded they’ve become (better to bring another tank or dps).
That’s the beauty of the various energy systems.
Yes, in many fights you have to stagger bosses in various phases to prevent them from nuking everyone in one go.
If players just spam spells to “waste the stagger”, they wont be able to build the bar fast enough to interrupt the boss again during his “party wipe”.
Indeed, while it will be interesting to see what happens.. I have no plans to participate in the co-op or PvP features.
To me, they only detract from my enjoyment of solo play.
Of course, I can’t blame the devs for aiming for the multiplayer audience. It’s a great way to prolong the life of your game.