Because it limited the number of slots it could take up, broke up any hype for it, made it hard to find when it would be on reliable, the like. Killed the ratings.
Right, so somebody else mentioned it but basically while it's well known that certain timeslots get good ratings...ratings for a show are an aggregate. That is to say, within a certain timespan, *all* views are counted for that program, regardless of its actual timeslot. So basically, the reason TTG has good ratings for example? Nothing to do with being popular, everything to do with having that many slots given to it. Taking up that much of the schedule causes that shit to fucking skyrocket. Because you're not just getting the views from one or two timeslots, you're getting "everything" and every suburban single mom and tired dad is leaving it on for the full six ours for timmy and tommy.
You put *any* show on for the majority of the schedule on a children's network and so long as you don't do anything to make mom and dad shut it off that show's going to start wrecking faces.
But that goes two ways. Make it harder and harder to see the show, give it the worst slots, and the least slows, and make it unreliable as fuck? Fucking plummets. Then you point to the low ratings as justification for why it and shows like it need to go.
There's more benefits too. All that schedule fuckery is stressful as shit. It's mind games. Writers start fucking up, animators slip, etc. They don't know how much time they have left, if they'll be canned or not, they get desperate to save their jobs, make bad decisions, etc. And that just hurts it more.
Plus, less views, lower quality, less reliability. Toy sales, if any? Drop, a lot. Demographics shift. Timmy can't get up at 5 in the morning every other day. Jack and Brittney can though, they've got sports, or college, they need to be up early, but Jack and Britt don't buy many toys. They aren't the "Target demographic". Which means more justification for canning