Yeah, probably. But the budget certainly didn't help.I wouldn't be suprised if Disney buying Lucasfilm was more of a factor in why Cartoon Network cancelled Clone Wars, TBH. It did get moved to Saturday mornings from Friday nights in its last season, after all. Probably a bit of both.
I'm guessing the Cartoon Network run of Star Wars: The Clone Wars. Granted, it lasted a long time, but it was hella expensive, and that must have been why it was canceled twice.
I also might put Young Justice in that boat. Why? Besides not having good toy sales to sustain it, when it came back to streaming, the budget was very obviously drastically cut because both the animation and voice-work were actually now VERY shoddy. It's clear one of the stipulations for the show being brought back was not to be so expensive, especially with no toyline for financial back-up.
I also heard that Kids WB wanted more seasons of Static Shock but WB Animation couldn't justify the expense without a toyline.