Thanks for the pointer. Yes, this Spell Typing spell might be used to chance the type from U to F. The spell contains a comment about only changing the nature how RRs get made, which makes me wonder if such a change of unwilling targets now being possible targets is really allowed. But it could be the case.
The good thing is that both, Spell Typing and Spell Shaping are Base Spell Lists of two distinct professions. Of course it would easily be possible for a high-level Arcanist to also learn a 1st level Healer spell, but probably at such a level he has other attack options...