I hope that your optimism is justified, but am not totally sure; I imagine that prior to Burnley and Saints, you would have said something similar about the 5 winnable home games, as I did, to be fair. As to your comment about those not attending Withdean -one might argue that THAT is insulting...
Much will depend on the tactics in the three "winnable" home games - aim for 0-0 at best, as we did last week, then your scenario becomes reality with frightening speed!
In theory it is possible, but the scenario would involve Cardiff winning at the Amex, and the gap would then narrow . .I would hate for it to be put to the test!