You know, I think you're right. Although I'm mystified as to why she's still buying them, having complained that it's pointless to do so for about 4 years.
If she even buys them. It might just be fake rage as a standard class ticket holder annoyed that people with standard class tickets go an sit in 1st class when they shouldn't. There are many levels to this.
I'm not sure quite how I arrived at this conclusion, but reading between the lines I think she may buy first class rail tickets.