This one might be more serious than minor. I’d have thought it’d be posted elsewhere as a bug, but apparently not.
Yes - tome, seal, helm, tiered cloak - all of these should activate regardless of where the cursor is.
I think it’s just coded that all ability usage checks for cursor location, because many of them do require coordinates to target on, so just easier to code all abilities the same. With the recent plane/prism abuse cheat, there might be reworking going on behind the scenes by Deca, but idk.