I really think SE is stretching the jobs a little thin due to them wanting everyone to have the exact same number of abillities. Some jobs that would traditionally make more sense to have a large list of spells got shortlisted due to constraints.

WHM and BLM both seem to suffer from this, also the lack of proper tiering of spells takes alot of the MP control you would normally have out of your hands. They make up for it with a few abillities but your not able to control your damage as well as you should be able to. If anything I always thought of BLM as a glass cannon with high damage output quick death ensues so they had alot of options to dial back the damage so they didn't get dead.

Personally I'd like to see BLM get all the elementals to their handling mainly due to it being their trademark, or hell at least make the other elements they do have available to them not usefull in only a handfull of situations and even those few usefull situations need resistence checks...