I wasn't trying to answer that question (I don't know why they haven't), just showing that it's not that the people there are just especially homophobic as some others in the thread are claiming.

But if I had to guess I'd say it's probably because attitudes have changed relatively recently and that it can take a while for that to translate into material social progress. Cuba had a lot of institutional homophobia in the past, but now their new constitution explicitly forbids discrimination on the basis of sexuality and gender identity, and they're in the works of legalizing gay marriage.