I heard back from Priority Bicycles - their customer support is very responsive.

Whereas my preferred lowest gearing ratio is 24t/34t = 0.70, at a cadence of 80-90,
The Priority 600 (not CVT) goes from (lowest) 1.3 to 7.8 (highest)
And the Onyx Continuum goes from 2.1 to 8.0.

So the question for me is whether I would be comfortable on hills at a substantially lower cadence. My guess is no, I would not, because I have been going in the opposite direction with my current chain rings and cassette.