You can use this to rationalize-away every regression in every piece of software. Enough "well, they're just edge case loud power users" papercuts may eventually prove fatal.
A to-hell-with-your-workflow sneak update, no-downgrade path approach like this speaks volumes about Mozilla.
EDIT: Sneak insofar as no clear communication about how much functionality users would be (potentially permanently) losing, and no directions on how to avoid that outcome. The play store rollout has certainly been inconsistent but that's probably more on Google's end.