Seems that the Home Assistant user base, as determined by Chamberlain, is relatively small. To hardware/software hackers this type of vendor pull-out/lock-out should always be expected. However, since the end user has physical access to the device thinks like ratgdo[1] will always be an option. While the app integration is nice, garage doors still seem to be one of those things that just needs to work in proximity and a smart phone app and alarm.com / amazon integration are superfluous add-ons.
I bought mine from Costco for the simple reason that I could return it if broke.