The good dealer doesn't mislead the good customer, intentionally or otherwise. The good dealer sorts problems out for the mislead, bad customer, that has a complaint of being mislead. Especially after they've assumed something could be changed and later found out they were totally wrong in doing so. The good dealer reimburses the bad customer. Or takes the matter higher with the bike makers that labelled kph as being UK spec.
The good customer doesn't complain about anything. Not even genuine issues. The bad customer complains and is labelled a complainant. Despite every right to do so.
Depends on your viewpoint really. Although, bringing things up publicly, does raise awareness in such matters.
It's a left hand drive bike.. What actually is 'UK Spec'?