Adding an auto-combo on the final step reduces the four combo system into two. That's a fairly obvious simplification. Melee jobs are always about mechanical execution.

A beginning player will be forced to hunt-and-peck using their hotbar guidance, but this is inefficient in harder fights and lets you only plan one GCD at a time. Over time, as you get used to mentally tracking where you are in the sequence, you learn to do this without looking. NG historically added to this by adding one additional element for you to track that shifts the pattern as you play. Each one of these elements that you remove diminishes the job further.

Either way, it seems like you have a lot of disdain for this job, so I'm not really sure why you would insist on changes for it.