No worries. I was not really able to deduce any more depth out of the combat, really. There were some defensive options that seem to always cancel into offense options to feel snappier, but I think it was really a matter of what the game bothered to teach me and what I needed to do in order to make it through the game. If they want to make it a priority on the sequel, I trust them to know how to do that.
Your best bet is to just go on Steam and start filtering by tags. You can click on a search and search for both “JRPG” and “Turn-based combat” tags, and that will give you a good list of games in the ballpark of Phantasy Star.