Perfectly acceptable, if a bit disappointing. 12 classes - 24+ subclasses - is already a lot and Larian seems to have their hands full with the 8 classes released so far. Perhaps they'll eventually release Artificer and/or more subclasses in a DLC. Though I'd hope that such a DLC has more than just classes: additional areas and/or raised level cap.
And yeah, it was clear from that past video interview (and the patch frequency/content) that 2022 wasn't going to happen. Swen said "he'd be happy with a 2022 release date" which actually means "no way barring a miracle." Better delayed and good than rushed and bad.