As it stands, the nerf to Elemental Attunement is going to completely wreck the class build diversity, but it’s there to address a core issue of it being somewhat overpowered combined with the cele ele build.
What I’d suggest as an alternative to simply forcing us to drop one active trait in favour of passive ones, is that the trait be removed altogether.
As a replacement, attach each boon proc to the grandmaster minor trait in it’s respective trait line, thus limiting our access to 3 of them, or 2 of them + Evasive Arcana.
What this will do is take the defensive boon procs away from burst specs, while allowing hybrid/bunker builds to maintain their defensiveness, while limiting their access to offensive/utility boons.
It’ll also allow PvE players to have access to the swiftness proc without going deep in arcana, something that i’m going to guess would be a pure QoL improvement for them, with no real balance impact.
All in all, I think changing Elemental Attunement to be tied to the individual lines would help define ele builds to a greater extent, without forcing every ele into passive auto-proc based builds.
The obvious counterargument to this is that protection and regen (combined with cleansing water) are both far more powerful than might or swiftness.
This is a truth with some modifications, swiftness is incredibly important to maintain, both for map mobility in sPvP, and as a cover boon, helping to ensure thieves don’t get at your might using Steal/Sword 3.