Also, it seems like the reason that it does it is because you're trying to convert a couple of sentences into a full blog post/press release/article. All it has to go off is the input sentence - unlike an actual writer who (probably) has all the details about the subject. If you don't have the details and the result must be at least X length, then you're going to get a ton of useless padding around the only details that you've given it, because the only other thing that it could do would be making things up.