It wouldn’t surprise me. Do you remember those pictures of the floppy VF-19Kai resin prototype? The chin, shoulders, side covers under the uniboob and even the whole torso weren’t in the right position. This is exactly the same case.
I agree. Actually, the only toy lines that shouldn’t have any issues about proportions are those of Macross Zero and Frontier due to the fact that their art lines or animated renditions are based on CGI. And I say they shouldn’t because even having at least half of the job already done the guys who designed the DX VF-25 v.1 line have proved CG line art can be not enough…
I guess the stickers of the fighter mode and the ones of Macross7 could be useful for something like customizing the stand... Not saying I'd do anything like that though...