Caster skill gap and solution (maybe)

[BabyYoda]

since existing casters has been getting gutted each expansion from 2.5 sec GCD until now 1.5 which if you calculate it you can move before cast ends 1.2 or 1.15 sec.

2.5 cast time for mages and healers are being removed and Pictomancer design kit is a clear sign that they want to remove the 2.5 sec cooldowns or at least not using it for most of healer/mage kit.

I was thinking of this as a solution:

Caster can have 2.5 sec GCD and they can also move while casting (not like walking-casting MCH and BRD from PVP) but actually moving but there is a catch:

- if player moved while casting casting time will increase 20% while moving but when player stop moving it will move casting to be faster.
- if player moved while casting healing or damage spells will be less 20%.

this will make casters more approachable and easier to play for casual people and potentially improve min maxing dps for Hardcore players. (move in downtime but standby in burst).

NOTE:
I am not a game developer or have any experience in game design I am just a player,
I write what I think would be cool to see and maybe I am wrong and that's ok.