it's very rare to see that bitcoin.org has a phishing website
Rare maybe, but I'm not surprised one has popped up right now given that people are probably doing a lot of searches for bitcoin/crypto. Seems like a weird imitation, as usually the phishers go for misspellings rather than using a symbol like that over the "o" like this one did. I don't know who would mistakenly type that out, but it'd probably fool a lot of people if it showed up in search results.
Thanks for the heads up, OP. I'm not sure how many bitcointalk users would have fallen for this, but the warning certainly can't hurt.