What happens with disabled passengers when platforms are changed at the last minute?

[Aictos]

Rather a big assumption there!
Some trains can have several drivers to cover the whole route and I dont just mean the long distance ones.
One springs to mind is a Penzance to Cardiff job which has drivers from-
Penzance to Plymouth, Plymouth to Newton Abbot, Newton Abbot to Exeter, Exeter to Bristol and Bristol to Cardiff.

As for the rest of your post, very nice piece of self righteous condemnation!

Nicely put