I bought one of their "Smart TV"s several years ago and they progressively removed functionality that prevented even inbuilt hardware working, so would not count on them doing this correctly or even supporting it afterwards
Indeed. Manufacturers big-up smart TVs, only to fail to support the apps. after a very short period of time. The TV forums are littered here with posts from people, who having bought a smart TV have found that after only a short period, these apps. break, and neither the TV manufacturer or app. authors can be bothered to fix things, expecting us to junk what we have in favour of the newest best thing since sliced bread. I take this sort of announcement with a pinch of salt. This is nothing new to my mind.