For one thing, a company like CN has different divisions of different departments headed by different people with different goals. The people who handle scheduling are different from those who handle traditional advertising, as are those who manage the social media accounts.

Scheduling folk go by the numbers: TTG, for example, has the best cost-to-profit ratio, and is guaranteed views by the target audience, so it is the obvious choice to devote airtime to.

Advertising people go by focus groups. Since children are the money makers of animation, and comedy is easier to market than drama, whatever gets the most kiddies giggling is what goes.

Social media people care about likes and reposts. They know that out of all their shows, SU has the most active online fanbase, so they put that at the forefront.

AND since each department has its own manager, who in turn has their own motives, what they say goes.

Manager of the scheduling dept. who has a soft spot for SU retires? Well, if they’re replaced by someone who only cares about the bottom line, then you can expect a lot of TTG reruns. It’s not that they don’t like SU, it’s that they have different priorities.

Any number of shake-ups within varying levels of a company, for any number of unrelated reasons, could cause what we see happening to SU.

You should never jump to malicious intent as your explanation.