One major reason I still haven't switched away from Node and NPM is major stability and support, pretty much everywhere, e.g. full automatic VS Code support. Plus, even if it's ever so slowly, Node.js is legitimately keeping up to date with the latest ES features and always improving its stdlib, and V8 is still the king of performance and likely to remain so, unless, say, a court were to split up Chrome from Google funding by monopoly laws. That said, Node progress is slow. I'm not entirely sure why. I'd be glad to get paid to help make Node.js better if that were a job. And I'm still waiting on #57696 to avoid using async in a few places that I otherwise wouldn't need to.
Node’s progress to modern stuff like ES modules has been glacial. Probably the primary reason Bun/Deno have any success. It is speeding up though, seems a fire was lit by competition.
It hardly matters on the enterprise space where projects live from LTS to LTS, and version upgrades only happen when someone allocates enough budget for a consultancy to come in and do some upgrade project.
These aren't the kind of folks rushing in to add Bun/Deno into their stacks.