Who cares about positionals in dungeons that much? Dungeons are a joke. Everyone can do them and you don´t even need any skill or that much equip for them, it´ll just take a bit longer. The classes only have to fit savage and ultimate content, nothing more!

Positionals ARE that one thing which makes melee careers special and actually fun to play. Playing down 1 2 3 as you do as tanks without any need to care about something is boring af. Tanks have to take care for boss positioning and defs atleast, but even that is not that big deal. What would´ve melees left? Yeah, nothing... caster have to care about there positions and casts, because they´ll lose a lot of damage or die if they missplay. Melees would stay there 123, 123, 123, 123 and what else? Noone knows.

If you don´t want to deal with such stuff, go and play physical range. Especially dancer is soooo hard some lightning outlines will show you what to press next. Atleast the dancing mechanic should´ve been like the ninjutsus in some way, but hey, all have to become easier and easier.

And as others said, there is a skill called "true north". It´ll help you to hit 1 of the 3 positional spells of dragoon if you´re not able to move. Btw don´t try monk then please. I don´t want this class to get ruined more and more because players don´t have the will to learn the class and boss mechanics to play positionals properly.