Evidently so, usually it's used in combination with another type. But sometimes you just... have normal types.

[She's switching the camera for a bit around her nonsense, first showing a noctowl who's kind of sleeping right now.]

Like he's normal and flying, [then to a female pyroar] she's fire and normal, [and then to a herdier that's stretched out on the floor] and he's just straight-up a normal type.

I don't think they knew what to call them other than just to shrug and go "normal, sure".