Upcoming changes in 3.4

[Enlial]

you can just spam any skill to force you face target while running

That's a good point actually. The change to /facetarget makes zero sense unless "automatically face target when using an action" from the character options menu is affected as well. Which I guess could be argued is really "automatically use the face target command when using an ability". If that's the case this is a huge nerf to melee. Use lock on target all the time or accept that you're now a caster with a 3 yalm range :|

[Zojha]

That's a good point actually. The change to /facetarget makes zero sense unless "automatically face target when using an action" from the character options menu is affected as well.

Slight difference: /facetarget is not affected by GCDs. So if you're chasing, say, a healer while mashing your rotation abilites, once one connects, you can't use another one for two seconds to remain facing the target. You can however still mash your /facetarget macro. So if the target makes a sudden turn and you just keep your finger on W, you'd be running in the wrong direction for a bit in the first case but not in the second.

The difference could be eliminated by using a macro with /facetarget in the front for every rotational ability of course.