agree on that too . I have been maintaining a mariner 30 for our local slsc its ex rnli and its simply fitted with a throttle return spring . The idea is if one the lifeguards are thrown out of the boat in surf the other can simply take over without having a dead engine in the surf break and losing the boat .
It bloody lethal , after a few days use on the beach the throttle sticks anyway . They use the boat for IRB racing practice where a casualty is collected then they return to beach and the driver sprints up the beach to a finish line . The boat is contantly driven up the beach flat out and left throwing sand everywhere with the motor going flat out . they had a brand new mariner 30 this year and had stuffer the rubber engine mounts in 3 weeks
I no longer volunteer to fix it for them
Dunno about other bigger lifeboats , but as far as iam concerned the biggest danger on any surf beach is the lifeguards in their IRB