I saw it, too and yes they were referring to the F25...even showed a nice M-sport example in the show, if I recall correctly. Their analysis was grounded more in the question of why the car needs to exist and what need it's really filling... but all of us are evidence enough that the need exists and that the current gen X3 fills the need well.
I also think Clarkson, Hammond and Captain Slow a bit of a hangover from the first gen X3, which was widely derided by reviewers.
I'm a big fan of the show and was really hurt when I saw this segment. Actually, I was pretty shocked. Then I got back in my 35i M Sport, put it in Sport+ and matted the throttle...all better