Some thoughts:
- 12 Blackjacks is about the equivalent (give or take an airframe) a single B-52 or B-1 squadron. I'm guessing their readiness rate sucks; under 50% wouldn't surprise me in the slightest.
- Mister Bear has 44, or about 3.5 squadrons available. Their readiness is likely better, but nothing to write home about.
- There doesn't seem to be any particular rhyme or reason to deployments right now; I'm guessing a lot of that has to do with the fallout from the drone attacks of a few weeks ago. But notice they appear to be concentrated at Ukrainka AB (https://en.wikipedia.org/wiki/Ukrainka_(air_base) )....and here's Ukrainka:

You'll pardon me if I wouldn't be crazy about packing 60, 65% of my total strategic bomber force in one place. Of course, that's just me.
Mike