I think WB definitely views more of a distinction between animation/art style and the different age groups than they used to.
Stuff like this show, DCSHG, or TTG! is what's viewed as appropriate for younger audiences and specifically aims it at said younger audiences, while stuff like the older Timm style, Young Justice, and such are now viewed only for adults, so we see Young Justice: Outsiders made for mature audiences or the recent DCAU movies that are part of the adult-oriented direct-to-DVD line of movies.
Heck, look how Marvel has been treating their animation as of late after the Disney acquisition.