remember, though, we're discussing a 30amp coach plugging into a 50amp double-pole RV outlet, via an adapter.
Since a 30amp coach's Main panel is designed for a maximum of 30amps of usage by the RV, it's highly unlikely that all the individual breakers in the panel, even if all used at the same time, would result in anything more than 30amps in the first place.
And, even if the owner tried to use too much, the INDIVIDUAL breakers are in place to also manage each circuit, EVEN if the main breaker had some type of issue.
I think the conversation is overrated about this possibility, and it's unlikely anyone employing this adaptation from 50amp to 30amp is going to run into any likely problems, especially since they already KNOW they are plugging into a different type of outlet than the 'norm'.
Go camping..... and worry less... RV cords and adapters are designed for these types of situations.
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