Moving will be made to interrupt spellcasting at a point in time...

[Eldaena]

I dont use /facetarget either since I use a controller but like I said it takes very little time to register your character has stopped moving. If I can do it without issue and still be great at healing and have a 12 pack in me I'm sure most people can do it as well it just takes getting used to and remembering to not rely on casting being the thing that stops you, watch the arrows for a bit to help ya out. Its just an adjustment period.

Well, maybe I'm mistaken, but isn't it like this now?

Example: A melee and a mage both start running from point A to point B. When they get to point B, the melee will be able to use a weaponskill as soon as they get there, or even before. A mage however, cannot cast before they get to point B and when they get to point B they either have to use /facetarget or wait a bit longer than a melee would have to, to use a weaponskill, before a mage can begin casting. Then, when a mage is able to cast and does so, that too takes casting time, whereas a weaponskill is used automatically. <--- Shiggysonson this is why it feels a little unfair to me.

Edit: Example with full MP, full TP, and no instant spellcasting spells.