Well, you really can't appreciate well-made kydex until you've handled some that isn't. In your case, you have obviously been sold by the advertising rather than by the usability, and thus really don't care what everybody here thinks as you're gonna get what you want anyway.
I personally think the TIE sheaths look terrible, overcomplicated, and impractical at best. The Yellow Hawk sheaths don't look any different than what you'd find here.
If you even bothered to talk to any of the good kydex benders here you'd realize the skill it takes to make a proper sheath out of it, and how much care they take to make the best product possible. Dissing them because they look boring and assuming that their simple looks beget a cheap manufacturing just shows your naivete and lack of knowledge. Good luck with your fancy toys, hope they are as fantastic as you've been led to believe.