Your treatment, both the discourtesy from Gerson as well as being denied boarding of the catamaran was outrageous. Please make sure that either you or your husband make both Destination Services as well as the GM aware of this situation.
I do wish that Regent would increase the number of excursions for cruisers with mobility challenges. I have cruised with my mother, who is on a walker, and we had to skip ship-provided excursions in several ports in the Mediterranean, as none were suitable. This was pre-COVID. I also traveled in January with my husband who was having walking issues, and it was difficult to find excursions in every port. We’re all aging. Given Regent’s demographic, some gentler tour offerings would be appreciated.