Right now Harriet's alchemical research usually stems from either treating it as "play" and creating something fun and silly, or solving an immediate problem. So although she wouldn't be squicked out by the idea of researching resurrection, she'd really have to have it spun as "urgent" somehow, either by realizing shortcomings of clerical resurrection, or seeing some way that alchemy could improve on, expand, or complement it.

Given a long long life ahead, would Rhys ever consider learning an instrument that didn't require his voice?