The 'more' is that the mother had a broken arm and made a huge fuss. The disabled woman, with what she calls 'dwarfism' and brittle bones, was left feeling overpowered, outnumbered and humiliated.
The mother was being an utterly precious twat and the guard acted outrageously.
Why did the mother demand the mobility scooter be 'folded' or removed?
Why did she tell the disbled woman's OH to move from an unreserved seat?
Why did she 'throw a fit' when told no?
Why did the guard make an announcement to all passengers apologising for the delay blaming a disabled person?
Why did he threaten to call the police on the disabled woman?
Why did the train staff repeat their 'blame the disabled woman' apologies throughout the rest of her journey?
Yes, the mother has apologised now... I bet she feels really sorry - for herself, being shown up like that!
That's the more of it: Disabled woman can't reserve disabled spaces for her scooter, the online booking system doesn't allow it; woman with broken arm and pushchair arrives, demands disabled space and unreserved seat, gets angry and staff make a series of horrendous decisions.
Horrendous!