They'll have to re-work it so much if they put it somewhere else that I expect the integration work would approach the cost of just re-implementing it.
I don't mean re-host, which is obviously trivial for this site, given how it works. I mean integrating with any kind of broader site ecosystem (styling, may need some kind of embedding or nesting, re-sizing to fit with other content, et c.), modifying branding, integration with apps (even "just embed this existing page in a webview" rarely goes as smoothly as one might hope), that kind of thing. If they do anything more than barely touch it at all—that is, if they try to actually use it for much—it's likely to be a decent amount of work.
