Howling:Why no mention of Martha?

In SJA Death of the Doctor, a whole bunch of ex-companions of the Doctor are mentioned, including Liz Shaw, Harry Sullivan, Tegan, Ace (possibly), etc, etc. Yet I find it a bit odd that all the way through the story, no one so much as mentions Martha Jones, a person who not only travelled with the Doctor, but was also affiliated with UNIT itself. Does this mean anything at all? 82.2.136.93 17:05, November 7, 2011 (UTC)