The Ifrit fight seems to be the main irritating factor with your request.

It does make some kind of sense to not be able to move while performing a 6-hits weapon skill. The real problem is the server lag, that makes the lava appear under you couple seconds late. You could avoid it in most cases without that lag, unless you're a terrible player and initiate a weapon skill while you're standing there. They could make these kind of fights harder and more reactive without that lag.

The exception would be Archer basic shot that shouldn't lock you there, since other basic attacks, even if they're auto-attacks (not talking about the buyable basic attacks), don't.