As I explained, I currently have significantly underleveled elemental and dark magic skill because I never played BLM and SCH's light/dark arts severely hampered skill up rates (but you never noticed the lack of skill because of their effects). Now I'm playing a job without these abilities, and the skills are going up at a rate slower than that of the speed at which a snail moves with its foot broken.You should be able to land nukes, SCH and GEO have the exact same elemental skill rating.
Granted, this is not a problem for everybody, but it is a problem I face personally.
Well, this is one of the biggest issue the job faces. It has some great benefits, many of which are not fully acknowledged by the playerbase. But the carveat you mentioned ("especially if the party's mobile") is a big one. While great for delve NMs in the field, it is not so great in fractures done for plasm farming because the party often moves around a lot. It is not so great when leveling up in abyssea, either- good luck getting people to pull mobs to your auras.In that case, it's not going to be worth casting, especially if the party's mobile. On Boss NMs, On the contrary.