Yes, that shows MS is actually quite hostile to hardware vendors. There is no need to complete drop support on existing hardwares, you can at least provide a lite version if the old hardware (actually not that old) isn't powerful enough.
This isn't really hostile to hardware vendors if you think about their incentives. They're the parties who would benefit most from a user buying a brand new phone once the 18 months of support expires. There's zero incentive for most hardware vendors to support old hardware with software updates, because unlike Apple, they don't see any additional revenue once the phone is in the customer's hands. Apple even gets revenue from customers of second-hand iPhones years after initial release, thanks to their cut of the app store sales.
