So, in the wake of removal of useless abilities, I was surely expecting it either be cut off or made scale to int. To my surprise the spell still remains unchanged, what gives?

To be completely fair, one thing that I've noticed actually hint that the Devs WANT it to stay like this: Once I logged into my SMN, I've started to remove the deprecated abilities, but then Physick was still there without the red slash mark, but weirdly "not useable by your class".

Then it clicked, that instance of Physick was probably the SCH one actually!... I've had to open my spellbook and drag another Physick spell to my bars - so apparently they made another instance of the same spell for SMN... yet they kept it scaling to the wrong stat.

Why even bother, then? Could have just ditched the spell.