The word "spoiler" is applied to any trailing edge device that's been added on including those of modest negative slope and those of +60 degrees.
In that context just about every SUV and Crossover made today has one, and so do the last of the wagons and hatchbacks.
Just want to point this out for clarity.
https://www.hendrickhondasc.com/used...ZZMCAXGC025606
https://www.grandmotorcars.com/detai...7fbb98380.html
https://www.consumerreports.org/smal...ooper-preview/
It's just not the location at the back of the car that makes the examples above better than the ones in the video. It is their design and angle of attack.