About half of all tech on the internet today originated by google open sourcing it. Your and other google hate does not take into account the fact that many things that exist on the internet and tech is because of google I cant believe you guys are still crying about reader. Personally I think it was bad move on their part but I really don't get all the crying you guys do for something that shutdown 5 year ago.
Flutter will be official development platform for Google Fuchsia, their next big OS*. Google is supporting Android and iOS with flutter So that they can have plenty of apps available already when Fuchsia is launched.
With the big investment they are doing in Fuchsia it seem unlikely they will abandon it soon.