I forget which article I found it but its under the CN area, sorry I didn't link it earlier.
However there is a discussion on Toonzone that explains the lacking of Steven Universe, also explaining why CN has the shitty schedule they have, I'll copy and paste for you all to read:
"Steven Universe is a lore heavy show (or "story driven" as my boss put it) and therefore lacks "replay value". The network intentionally airs little SU because it's already seen the future seasons of the show and management has already pre-determined which episodes will get high ratings and which ones won't. The townie episodes as of late contribute to the overall story minimally, but don't make sense without prior viewing of previous episodes and understanding of the overall plot. SU's target demographic (10-13) along with the network's (5-13) largely wouldn't be able to comprehend episodes that are townies, boring and connected to the plot. (CN knew this for a while, this is why anime was regulated to Toonami on Saturdays) Therefore, CN airs these usually once a week, without any orders to us (IT, specifically the graphic designer division or the employee who runs the twitter account (he's an SU fan)) to do promos.
However, the network does plan (and did with the Space Arc and New Crystal Gems) to air many promos and online ads targeting SU's unintended older draw (you) to watch on TV or the App as part of their online launch. (Yes, they're looking into live-streaming as well).
So that's the deal. Teen Titans Go and Gumball take up like 50% and 35% of the schedule respectively, because those shows make stand-alone episodes that are enthralling for the demographic. SU's kind of in a snooze period with episodes that are uninteresting. When the cool episodes about lore come, CN stockpiles those eps. (bomb-format) with standard TV promos and usually Peridot twitter take overs."
To keep it short, if a show is episodic and has little plot, then it gets all the air time, but if each episode is heavily story-driven, then you only get to air once a week and get severely crapped on, does that make sense?