Yes, I have a relative that "won". (The raffle is a farce IMO, I think it's just a way for them to be selective about the buyers. To filter by "type".)
i don't think so this is completely true
i know of two people who have won and both of them were unlikely candidates for the location
if your wondering why they were interested one was an couple who never even saw the place and one was an elderly widow who wanted to live near her children
and fyi this is all new construction these days there are waiting lists with hundreds of people for a development with only dozens of houses
that being said there are definitely places with sold out signs but available houses - its part of the game unfortunately