Oh, I know how Reiki works, I just don't see how it is compatible with the Biomancy text I referenced, since the spell explicitly reduces recovery time of a moderate consequence (or even a severe consequence, with more shifts).
That said, I think that healing magic is one of those things that should be addressed during the "setting the dials" phase, since attitudes towards the scope of such magic vary greatly between tables. Or, in other words, one size doesn't fit all. The effectiveness of healing magic should vary from table to table depending on where they want to be seated on the range between "grim-noir" and "pulp-swash", or even all the way up to "D&D cure spells".