I don't think Picto should be doing more than SAM/BLM/VPR. But I also don't think it should be as low as SMN. I think it should be somewhat comparable to MNK, which has a nearly identical party buff and defensive/heal boosting utilities. I'd honestly prefer if they removed or nerfed the healing from Star Prism. Hardly anyone is going to save it to heal when it matters, so it seems fairly pointless to me and makes balancing more difficult.