This is something that has been bothering me for a while and I know at least one of my friends also hates this. Shoulder pads can easily ruin what would otherwise be a great chestpiece. This is especially true for some races *cough* Elezen *cough* because of the weird proportions. It can also throw the piece's whole balance off when the pad/armor is only on one shoulder *cough* aiming *cough*. Sometimes these pads can be ridiculously big, though probably nowhere near what they have in WoW (based on what I've heard).
I understand some people probably like the shoulder pads, and good for them, but for those of us who don't, we're stuck with them. It would be really cool to get the option to hide them, just like the visor option.