Correct. I felt that previous statements left the impression that BA would not include a trip to a gateway city no matter whether or not the 2-4-1 was involved. I definitely used miles for my August trip to Glasgow, but I'm solo on this one.

For companion ticket purposes, keep in mind that in addition to obvious gateway cities, like New York and Washington, DC, there are some not so obvious gateway cities, like Tampa, Orlando, and San Diego that, in the context of a 2-4-1, may provide a reasonable alternative for a closer ground trip or cheaper flight.