I think is not really sensible to have Geo be a healer given so much evidence points to DPS, not impossible just improbable. The Shamans I'm referring to are the healers of Azim steppe, they're know to employ a number of healer coded abilities like blessing and divination as well as being able to animate their golems. They unfortunately said they can't do a terrain or zone control effect this was actually originally planned, once for ACN "distaff" and I believe again considered for Geo and they determined that won't work for how FFXIV works, not impossible cause things change but improbable.

A lot of jobs get DPS coded unfortunately because a lot of jobs are DPS, and at some point yea you're gonna have to blur the line and make some of them tanks and healers, but Geo has so much Lore in and out of game pointing it away from healer that if it came in as a healer it'd almost be like "what was the point of all that then?"