just because the different asic companies don't like each other doesn't mean they aren't scammers, nor does it mean they are competent enough to design something that never has been done before.
Seriously, there's no way all these different vendors, some of which dislike each other a great deal, are in on some massive "Let's screw with people's with some vaporware!" plot. We'll get there, it's just gonna take some time.