Yeah, I really don't know how well 1x setups work for people in hillier places. I did a big charity ride through the Texas hill country about a month ago, and I didn't even take my normal road bike (53/39, 11-25). I took my "endurance" frame that's geared way easier (50/34, 11-28).
A 1x would've been miserable, and this was a weekend with only maybe 6,000 feet of climbing.
That said, are they even MAKING 2x mountain bike setups anymore?