And yes, Deno is just one player in edge, but you can agree there is much more money involved with all those other players you listed.
It’s going to be a battle of eyeballs from those edge providers then wouldn’t it? Whether that’s consulting or licensing fees, or just an acquisition / acquihire player.
Maybe you’re suggesting these players would build a runtime themselves. From my experience, only a fraction of companies, rarely, tackle ambitious projects like this. It’d be hard to justify to management who need quarterly results. Instead, they’ll fork an existing technology and make it better, because you can show incremental progress but keep your baseline. For example, Facebook didn’t rewrite their PHP code right away. They wrote a faster interpreter.