[akavel]

I'd say this claim falls victim to a survivorship bias viewpoint. I suppose new languages are now used with more or less the same uptake as in any earlier "era" of software. (I.e. tons of "old" languages, which were new when published, also died with basically no users. Conversely, there's also Nim, Zig, TypeScript, Crystal, .......... just from the top of my head. Totally making their rounds and worth watching, and with people trying to use them.)