I think the point of the NECO post is that adjusting camber at the a-arm is a bad idea, not that tubular control arms won't work. I don't think Stazi is bashing your product (which, btw, does not yet exist.)
Knowing the problems, it seems as if the best choice would be to make the tubular a-arms as simple as possible, and if camber is a concern, get the adjustable plates from Stazi or BAT. This would allow the arms to be made and sold more cheaply, and leave the cost of adding camber adjustment separate, and available to those who need it.
