While I'm prepared to accept the anecdotal evidence given in the original post, I think Yellow Oval's observations come closer to the mark. Many at DC apparently have nothing against the 66 show, and may even be fans. DC the publisher, however, now has a very long history of keeping Batman and their other characters more on the Darker and Edgier end of the scale. They would have to do a great deal to convince me that the Batman 66 comic is more than just a novelty act, albeit a welcome one. I think this current series is a lot like the BTAS comics they used to publish, or the Tiny Titans series. Nice stuff, closer in tone to what I would like comics to be, but hardly a major change of direction from the long, tired slog through a grim and depressing DC universe that they've been making now for decades.
Nonetheless, I am excited about this current comic. Pretty cool stuff. I hope it is successful.
I suppose I can accept that DC as an institution doesn't *hate* "our" Batman, and that many individuals who are or have been part of DC may actually love it. DC itself doesn't love our version. They have to favor what will sell best, and it seems unlikely that our Batman could have broader cultural appeal these days than the dark post-Miller character.

