Batman TAS was a saturday morning cartoon and a pretty good one at that. I dont think anyone is opposed to animation (actually, I'd prefer it to 3D / Live Action), they are just concerned about quality.

Personally, if you told me even a midsize studio would be making Horus Heresy anime (as in, quality non-western animation, no bug-eyes and random pantyshots) I'd be extra happy. Western animation, while well written, tends to be less gory / grimdark.