So I'll grant that it wasn't overly realistic. But at least it did provide a positive resolution. That's something many a gay teen in the 80s didn't think was remotely possible. In essence it was a squeaky clean feel good take on coming out. I'm sure there have been at least a few of those in the past and likely more and more up to the present.
So to sum up, in my opinion Sebastian is not nearly as bad as some would have you think. It's nothing deep, nothing profound--but still enjoyable in my book...There's definitely some fun 80s kitsch going on too!