look, I just put it out there, no one is making you buy one, or even make your own, if you don't want it and can't see the benefit. those of us who use them can refute every one of your 'complaints'....as in faster, cheaper and better. FYI I know for a fact that Toyota, Nissan, Mercedes, BMW use wire clamps under the hood and have for over twenty years. Others probably have also. Why would they?? I priced a Toyota wire clamp for a 4runner air plenum years ago and it was $14 then. I made mine in ten minutes for about a quarter out of stainless wire and it didn't turn to rust like the original. I really miss those worm clamp dangling straps that stick out too while the screw rusts away.
it's not a single purpose tool......guys in aircraft, watercraft, auto racing etc swear by these, just as I do. but....to each his own.