Can they tell the differences between installs or can't they? Either way, they're definitely lying to their users.
Wow, a proprietary quasi monopoly changes their business model into something extremely exploitative and hostile. I am totally surprised! Shocked even! Blimey!
Seriously, why spend years of your life learning to work with some technology that can at anytime be made instantly obsolete or impractical to use when some random asshole you don't know decides something dumb. If there's a FOSS alternative, always prefer that.