Not sure. Embassy can be pretty luck-dependent when you have just one - did it miss reshuffles?
You played it on turns, 5,8,13,16, and all four of those turns you bought Provinces. So that worked. You only got one province on a non-embassy turn all game, unsurprisingly I suppose. You reshuffled on turns 2,4,5,8,9,12,15,18. So it missed a few reshuffles, it's to be expected, it's Embassy.
I never remember whether sims support a second embassy or not. I think so, given how well this one worked out, a second would have been a good idea. For some reason my simulator isn't starting right now, I should redownload it, it's been a while.