That isn't what DoA means. "DoA" doesn't care for whether an individual can use it, it cares for the collective.

I'm sure Stallman couldn't use the iphone when it came out because of constraints, that doesn't mean the iphone ever was DoA.

I can't speak for the collective. As far as I'm concerned the current offers of BaaS are dead on arrival. Time will tell. I could see some value in the iPhone but I don't see much value in the current BaaS offers. Not enough to switch from the current alternatives. They are not transformative like the iPhone was. To complete your analogy we had smart phones before just like we have various BaaS services now.