The new patch is here!

[Roane]

The PvP diminishing returns looks like a patchwork solution for the lack of resistances.

Actually, the concept of diminishing returns for repeated crowd control spells in PvP was done in DAoC prior to this (two years ago or so?), and relatively effectively. As such, I don't see it as a 'patchwork' solution. It certainly made RvR combat much more survivable for those not playing in CC-overloaded Midgard, my little Champion included. It also led me and the others I spoke to regarding it at the time to just feel less frustrated with PvP/RvR combat, as you didn't stand there mezzed or stunned for ten minutes while a much smaller group picked your entire party off one by one.