Zombified Piglin Jockey don't aggro other Piglins

Just was playing around in a superflat world and spawned in a Strider/Piglin Jockey and when you hit the guy ON the Strider, no other Piglins will aggro BUT if you hit a normal piglin with no jockey then they become aggro towards you, Here's a DropBox link because the Video is over 10 MB : *https://www.dropbox.com/s/l90tc76hiq4otg7/Minecraft%201.16%20Pre-release%202%20-%20Singleplayer%202020-06-06%2020-32-50.mp4?dl=0*