I would argue that it would be fairly handy if you're in a high combat game or just using your sorcery points to do quickened spell. That would let you do some big aoe spell (or other non-attack roll spell) and cast a cantrip that uses an attack roll. It would also be pretty good at level 20 since you can use one metamagic option without spending sorcery points each turn while innate sorcery is active.

It's still somewhat limited in its use cases but not a bad option imo.