Holy Christ, I wanna work with you (DM me if interested, lol).
At first I was fairly bored with it and didn't see much of a point to this unique gameplay gimmick - switching eye focus constantly should be unfun, right? And it was at the start. Add this to the fact that levels don't actually require the player to engage in combat, so there's no point in buffing your legs and skipping past everything.
I was almost quitting but kept playing when the boss came (good introduction btw) and at some points it showed sparks of good potential in that - at first glance - seemingly unfun gimmick. The fight was tense at some points, asked me to decide quickly if I'd want to switch buff priorities PLUS after deciding i'd have to "pass" a manual skill check to execute it in a fast enough way to not disrupt the fight or getting hit. Of course it ended up being very easy once figured out, but its' potential is the real star here.
I'd love to see this properly explored, it's engaging in a fairly unique way.