Definitely forms some kind of implicit argument either for or against a belief in the wisdom of choosing JavaScript as a platform for, well, anything at all. Leaning towards against
If it does, I think it’s a pretty poor argument. JS is the lingua franca of the web. The web is the platform. Frankly, I’d love it if there were some pure, high-level (but lower than the web), widely satisfactory “native” multi-platform solution with truly altruistic motives but I know of none. Serious engineering is done on the web motivated by strategic business decisions. Isomorphic JS remains a smart one that is purely independent of what you see here.
> Frankly, I’d love it if there were some pure, high-level (but lower than the web), widely satisfactory “native” multi-platform solution with truly altruistic motives but I know of none
I want to say "WebAssembly" but that isn't it at all, since you're talking about the web, not JavaScript. The hypothetical platform you're talking about could use webassembly but that would be besides the point.