Any network will tell you that "programming is subject to change". However, I completely understand what you're getting at. When a program is shown that is contrary to what a schedule tells us, it usally is supposed to happen only rarely. However, as far as TOON goes, it happens almost on a regular basis, plus it's been going on for years now.
In any event I agree. We as viewers are entitled to some explanation as to the frequency of these things. Hiding behind the "programming subject to change" disclaimer isn't cutting it any more.
Cartoons aren't "just for kids"...but they're not just for adults either. They're for everyone.