Possible merge of marine_rescue & lifeboat_station tags?

Carrying on from discussions on the Tagging list, another question.

Looking at some of the “inland” examples shown on OT, I wonder if they should actually be tagged as a “lifeboat-station” at all, or whether they would be better shown as a lifeguard base?

Examples, with some websites included:

Way: ‪Wasserwacht Wörthsee‬ (‪299123258‬) | OpenStreetMap + https://www.wasserwacht-woerthsee.de/

Node: ‪Wasserrettung Oberwallis‬ (‪9151311469‬) | OpenStreetMap + https://www.slrgo.ch/

Some fire stations, that possibly also carry out on-water rescues? Should they also be tagged as “water” rescue, or just as a fire station?

In regard of use of boats for rescue purposes, Inflatable rescue boat - Wikipedia & https://sls.com.au/role/jet-rescue-boat-crew/ both relate to rescue boats that are primarily used by lifeguards for rescuing swimmers in distress. The fact that they have a boat, does not make them a marine-rescue unit, as they are intended for work close to the beach only, not in blue water.