For me that's just flavour, which is possibly a part of job identity but not essential. In comparison we have; Cure/Benefic,(Physic in between), Cure II/Benefic II, Regen/Aspected Benefic/Adlo, Glare/Malefic/Broil, Dia/Combust/Bio, Holy/Gravity/Art of War, Asylum/Earthly Star/Sacred Soil, Temperance/Neutral Sect/Dissipation (for the healing magic up), Plenary Indulgence/Horoscope/Emergency thing. They don't have the same names / animations, but they roughly do the same thing. I kind of map them all at the same places on my bars and I barely see any difference on each healer I play.

So undoing homogenisation has to got a bit deeper than that, in my opinion.