What happened to attack while moving for melee?

Maybe part of this is my fault, I usually don't consume too much promotional stuff for games beforehand but being able to attack while moving was something I was so hyped for.

Now I usually play melee, so here I am completely disillusioned and let down because while ranged have full directional movement while attacking, melee attacks are animation locked and you can only move forward with them.
Why? Was it too hard to animate? Too hard to get the mechanics of it working with fighting melee enemies or what? Nothing really feels all that different for melee from every other ARPG, you're still just as vulnerable since you can only move forwards while attacking, except now everything hits much harder and you're expected to dodge a major attack significantly more often, so it's actually worse to play melee than ever.