Something similar almost happened to me. Took months to interview, matched with a team that was working on a very interesting product and passed the hiring committee. Apparently the whole product was axed before they sent me an offer, so no hire this time. Probably a good thing in this climate, as this was just at the time the hiring freezes began.

I wouldn't have relocated at least, but would have of course quit my current job and probably had a bad time in the present job market.