This is by far the worst episode of Futurama so far. It was incoherent, disjointed, failed to provide a reference for the framing device (the delivery to the King of Space) and had all of the characters behaving completely out of character just for the sake of a lame story. The worst part was the handwave at the end with the professor saying it was a "science spell" in the last seconds.
They are now treating their fans like idiots, who have become used to tightly-written scripts with well thought-out plots and clever dialogue, but Hulu got their mitts on it and gave us this.
Like most here, I've been a day-one fan and watched most episodes episodes multiple times because they are so well crafted, they deserve re-watching. This season? Absolute garbage. Lazily written with no regard to the fans who kept up with it for two decades.
This is a shameful way for this series to go out on. This is Matt Groening's property and still has considerable clout to make sure that this could have been the best season to go out on, but he decided to say f--- it all, I got paid, and I can't be bothered any longer.