If we all would find addresses for these designers, and write letters griping about it and telling them bluntly that no way on earth will we ever buy another one of theirs, that might make them take notice. And write to the publishers of whatever magazine this pattern is shown in, advertised in, and/or suggested we buy/use.
Also, remarking that we will tell our friends on this world wide quilting forum might make them sit up and take notice!!
Math was never my favorite subject, and I still am very, very careful when measuring fabrics or wood. Measure 3 or 4 times, then cut, glue on additions or fill in with plastic wood~~