Ive seen some people try it with Goblins, and others pair it with Rally the Ancestors like the days of old
The ones that arent are doing it on purpose
With Tergrid's effects, it fits into any forced sacrifice or discard decks, as it's a way to get around the downside of often being one-for-one trades by putting them on your side of the battlefield or having a static ability to force the sacrifice and discard
These cards are the bread and butter of egg decks and are overall some of the best colorless card-draw effects
Importantly, it doesnt matter if the permanent card that was put into your leaves for any reason, perhaps via a Reanimation effect, you still Descended regardless
Your odds of drawing it, playing it, and having an informed opinion of it are very slim