I don't see it that way at all, I partly know what you mean, but I think they are simply focusing on a different audience, possibly factors like playability don't matter (as much) to them, they just want the experience of building it and displaying it, and that's it. But I do agree with the fact that the designs in some cases can be improved, I've never thought it's right that two weeks after releasing a set some fan releases a moc with a couple of simple modifications that makes it look better, I've always thought that official LEGO sets shouldn't be improved (at least not in such an easy way), it's what we should expect from professional LEGO builders I guess...
