User blog comment:Rassilon of Old/Young Justice spoilers at Comic-Con 2012/@comment-76.174.103.88-20120903080903/@comment-1038387-20120903203140

And Tim Drake hadn't become Red Robin yet when Teen Titans aired. The identity was created for an adult Dick Grayson by Waid and Ross in Kingdom Come (for those keeping track: Earth-22). Near the end of Countdown to Final Crisis, Jason Todd started wearing it, because his dead namesake of Earth-51 had worn it. Timmy wouldn't wear it until some time after Damian had become Robin, somewhere around 2010.

And as for TT Robin being Dick: if I remember it right, Murakami et al. wanted a generic Robin, but it quickly geared towards Dick, with Larry/Nosyarg Kcid and Nightwing and probably a dozen smaller examples. No Tim. The only ones who keep stressing it's Tim are those who think it's part of the DC Animated Universe.