Even better if they called it Domestic First:
Then my wife could have booked in advance her seat Scotland - LHR, on a connection to DEL in F, for free
Instead, the seat genies gave her the middle seat in row 28 in a 767 - which she changed at T-24 for a window seat in row 29.
To be frank, she preferred the Priority Pass lounge in T3 to the (very rude staff) in the BA F lounge there when we went to DEN earlier this year, and is quite happy with the PP lounge in T5.
She finds the lack of advance seat reservation on an F ticket for a domestic flight really annoying and would prefer advance seat booking to CCR access!
(which maybe shows how little she values that, since paying for a seat would cost her under a tenner!)