Because Cornish Cross is a not a breed. It's a product that's a result of several generations of planned crosses. Calling these chicks Cornish Cross, when they don't share those traits does nothing but confuse, mislead, and cause problems.
Cornish Cross are the result of a process where they go back atleast 2 generations, breeding Breed A to Breed B, and Breed C to Breed D. They then breed the offspring of these together. These breeds all have specific sex-link traits that they want to show up in the Parent Generation. That Parent Generation is then bred to produce birds that ALL are heterozygous for a whole bunch of traits. If you breed these, you don't get the same birds - you get birds that are homozygous for a lot of the traits.
Separate flocks of A,B,C,D are kept, linebred, and genetically tested to make sure that they keep the specific traits needed. A ton of research and money goes into these things, partly because a lot of the traits that lead to increased size are what are called "Lethal Alleles" - Basically if you get a copy of the gene from one parent, it has some affect, but if you get a copy from both parents, it kills you. One of the lethal alleles common in broiler stock is dwarfism in hens -broiler hens with the dwarf gene don't eat themselves to death, lay more eggs, require less food, etc- so many of the parent and grandparent lines carry it (normal type - fine, 1 gene - dwarf, 2 dead), but it needs to be gone in the generation that gets sold.
Cornish Cross is a term for a specific genetic mix - lets not muddy that term.
We understand Crazy Talk, and if we were willing to pay $2 for each one to be shipped to us, I'd expect the quality of the breeding. BUT we don't care that our birds are smaller, different shape slightly and take a little longer to grow out. Why are you so against our experimenting? Let us play. We want to be able to experiment and try different things. Don't be so negitive. It's just chickens, right?
