[cptskippy]

As for what I expect from a Nexus

What you expect and what is promised are not the same, in this case they are very different.

I demand a minimum of two, but find it reasonable to expect three.

So now it's an unrealistic demand you're making, and not their failure to keep a promise (they never actually made)?

From this, it seems clear that Google has completely lost its commitment to the Nexus-brand

Regardless of the circumstances, this is an absurd claim.