Yeah they didn’t nerf Well enough to not make it mandatory for most encounters. They also don’t say anything about stacking it with a rift.
I think the problem is more encounter design than Well itself. 90% of boss encounters are some version of “stand still in area to do damage”. It the same reason Rhulk is such a good boss fight.
I am glad both are hopefully not going to be oppressive in Trials anymore.
It’s worse than that, actually. They made the damage buff last 8 seconds after you leave well so it’s going to be more viable in encounters like Rhulk where well previously wasn’t viable because you had to move. With the update you just have to touch the well every 8 seconds to refresh the buff.