I was a little surprised... But I'm also a bit happy about it. It made sense for Test Track 1.0, as that one was very well done. But I'm glad they finally got rid of the pre-show for this attraction. It's, in a sense, a thrill ride for cheap fun (but with much better theming now)
Unlike Dinosaur, Guardians, Haunted Mansion, Tower of Terror, and Rise of the Resistance, where the pre-show is an integral part of the story and plot buildup... Test Track's pre-show was about as useless as Soarin' (even tho I love that one), Rock N' Roller Coaster, and Flight of Passage... It was fine to have, but not necessary.
Sure, one could argue that the custom designing was sort of an integral part of the ride, but it really didn't add much to the experience as far as enjoying the ride itself... It's obvious that set elements are more important to a ride than interactive elements (in my personal opinion).
.....Also it'll keep the line flow better.