This is the kind of stuff that I feel a coordinated campaign to have consumers take companies to small claims court over would be very effective in combating.
I'm sure a bunch of elderly magistrates would feel that this kind of requirement is obscene and would readily side with the claimant.
As well, I would say pick a shame domain and make some noise about this, collate feedback from other consumers, etc. Spread that constantly until the manufacturer can justify it or relent. Hassle them for comment and until they reply to your satisfaction, note on the site that they haven't responded despite repeated attempts at contacting them.
I'm sure a bunch of elderly magistrates would feel that this kind of requirement is obscene and would readily side with the claimant.
Collectively this would cost the company a lot.