Pointless and uninteresting. Season 5 has been remarkably boring compared to the other seasons, so far it's a mess of boring full-length episodes (summer reading & evacuation drill), and shorts that nobody outside of Curtis High School would enjoy.
This promo does not hook me into the series, and therefore does not make me want to watch anymore. Most of this is really just you tweening a bunch of text, there's little to no substance. By the way, those 25 seconds of bullshit at the end has been done before (*AHEM*) and it only works if the animation itself is pretty long.
Maybe "Finals Week" will be good, though. I was a fan of Season 4 Squishables and Webdings, so I'm wishing you luck that the actual episode is better than the rest of Season 5.