Nice idea, but it sounds very gimmicky. How often would someone watch this before he would never use it again? Also, if the item you follow ends on a gigantic belt in the main bus or on a section that moves 1 times per hour because of low demand... or in a storage chest... It suddenly doesnt look so awesome then. The factorio trailer makes it seem look a lot more awesome and exciting, because there are short belts, fast switches to other machines, lots of belt spaghetti, etc. It was orchestrated/built specifically for this purpose.
i'd rather have other QoL improvements or more game content than some kind of gimmick.