Defenders of the Realm was aimed at boys. Don't try claiming it was a girls show.
I don't think you realize how insanely controversial a MK show aimed at little girls would be. There are basically only two violent video games that parents know the name of, and MK is one of them. (GTA is the other.) There has NEVER been a young girls show based on an violent R-rated franchise. Not one. Selling this to a board room would be nigh impossible.
There's also no marketing strategy here. What's the end goal? Little girls go out and buy M-rated video games that will disappoint them by looking nothing like the cartoon? There's no way this show was designed simultaneously with a new toyline, the designs aren't built for action figures. Try making a toy of any of the revealed characters. Cartoons don't exist in a void, they need to sell SOMETHING.
Also you're ignoring the MK Ultra name. It's a smoking gun.
This show is so incredibly unfeasible that it makes sense to be doubtful. You're getting hardcore dunked on.