My point is that the alternative isn't "no solution", it's "the much better database dump from Internet Archive or Wikimedia Foundation or wherever, the one that a new Wikipedia instance actually would be spun up from, not the one that you downloaded months ago and stashed in your closet."

The fact that random people on the Internet have old copies of an incomplete, static copy of Wikipedia doesn't really help anything. The real work that would go into bringing back Wikipedia would be creating the new hosting infrastructure capable of handling it, not trying to scrounge up a database to put on it.