I still think your hoodie looks decent, but that is one ridiculous answer! If it wasn't for my study, I wouldn't know what chromatic aberration means. Luckily I do now and it affects lenses in general like for cameras. The physical phenomenon is that blue light is refracted more than red light, which leads to chromatic aberration at the EDGE of frames/pictures.
Blaming your strength of vision is straight rude in my opinion!
I don't have any failing eyesight, yet, but the printing quality does look slightly faded to me as well. It seems it occurs quite often that clothes are shown with pasted designs online, instead of showing the actual print. Wow, this is wild. I'm sure there are people calling their lawyer for false accuse. That's one rude excuse.