I'll be honest: I HATE HATE HATE this trend of them putting non-TCW EU into the TCW line. If they're not in the show, they need to be slotted into another line, IMO.
Considering that Star Wars: Republic Heroes is a game that bridges Seasons 1 and Seasons 2 of the Clone Wars series, I really don't think it's that big of a deal for a figure like this to come out.
To me, it's a lot less EU than Jacen Solo with snakes wrapped around himself.
I can't help but chortle at the idea of TCW not being considered EU. And trying to partition off anything as "more EU" than a CGI kids' spinoff would have been laughable even two or three years ago.
Not making fun of you, McMetal, just at the way purist definitions of SW have changed so quickly.