There are, I'm told, reliability problems with 458 corridor connections that are a safety issue, so they are locked out of use. In addition refurb 455s have had them removed, to save money.
SWT 455's still have them
Guards never check tickets apparently (at least that's my experience!), and I guess they feel that there is no reason to want to get from one unit to another. Obviously they don't think it important to be able to contact the guard in the event of a problem - if that is the case, then the driver should be contactable.
The rules state the guard MUST stay in the rear portion on a train that is being multiple worked with no gangway connection, health & safety I belive
Would of made him/her take Memmy seriousally I supposeHowever, it could be argued that if you see vandalism occuring, and you have no way of contacting BTP, you should use the emergency alarm to speak to the driver, rather than ask the driver to open his door?
However I do think the letter should not be sent as it is, there are several adjustments that could be made. They may be tempted to ignore the letter simply for the fact it's snobbish "not only do railway staff not talk to passengers like that, they do not talk to First Class ticket holders like that." I am not aware of any reason why FC passengers should be spoken to differently.
Correct