It's a setback. While e.g. legendary system is a huge fail in Legion, removing raidbuffs is a step toward better QoL. You win time, by not having to wait for duffs after a wipe, you don't have to ask for a refresh and as I said, when everyone has all the same buffs it's just like incraseing your dps or hps by x percent, because they all add up. Instead just give us plain dps/hps increase or reduce enemy hp/damage.
It was a flawed system for years, they got rid of it finally and now it's about to come back?