I don't know if this has been suggested before, but what if they just added an option that replaces other player models with the placeholder characters that they use in the job actions trailer? Wouldn't this satisfy both sides?

The side that wants this option would get their wish because those placeholder characters are in job gear. And the side that doesn't want to be seen in anything they're not wearing would also have no discernible features of their character seen in those placeholders. Wouldn't that be the solution?