I agree this is not a good strategy, but I found it curious that Kotlin seems to have stalled and maybe is even declining. After all, it really seems what many developers would like Java to be. The article also mentions the existence of better alternatives in the form of some other languages' cross-platform frameworks, but doesn't make any concrete example. Anyone has ideas on which frameworks those could be?
Btw, Kotlin isn't platform-specific as they seems to say in the article, it's cross-platform as well.