Any particular reason for "Doesn't use node.js", given that a static site generator isn't going to use the runtime once the site is (re)generated so you don't have any efficiency or stability concerns from your reader's PoV?

(I'm considering node for a personal project or two, though as much as possible avoiding the mess that NPM seems to be as the projects are small enough I can manage the few dependencies manually, so insight into pitfalls I'm not aware of could be useful)