A rider in our cycling group says a bell means walkers should move. How do I challenge that?

The rider ahead rang his bell, kept his speed, and squeezed past a couple walking beside each other. One stepped towards the other just as we arrived. Afterwards he said, "They heard us. They should make space."

This was a narrow shared-use path, not a closed riding course. I slowed and waited. I'd like to bring it up before our next ride, but the group already complains that this stretch ruins the pace.

The [Walk Wheel Cycle Trust's advice on shared paths](https://www.walkwheelcycletrust.org.uk/our-blog/get-active/advice-on-using-shared-use-paths/) recommends a speed suited to the conditions, slowing where space is limited, and giving way to slower users. It also notes that ringing a bell may not be enough to alert someone.

How would you propose a different arrangement for this section? I don't want to argue about who moved first after every encounter, and I don't want keeping the group together to mean passing people the way that rider did.