kopenhagen5 it may not affect our rating, but does it affect our future potential customers?

I would say, probably not.

Firstly it's not a negative remark and neutrals are hard to spot on the page assuming that most buyers would look which they don't.

Secondly, it won't take long for it to end up on page two.

If you have already asked to assist in making their purchase more satisfactory, I would focus energies where it may matters.

Your record is impecable and buyers will see that first. 🙂