That falls under the "clarifying what doesn't need to be clarified in the clumsiest way possible" brand of Bobism. He does this a lot. Since he thinks he's an unrivaled genius despite being quite stupid, he frequently talks down to his audience like they're practically toddlers. Keep in mind, these aren't his hated subhuman wasteland ghoul enemies. His Tweets and videos are generally targeted at people he considers to be the smarter portion of humanity and he still feels the need to explain the obvious to them like they're absolute idiots. Really goes to show how warped his perceptions of reality and himself are.
Like in Robert's "Spartans are muh Nazees" hot take I noticed that he put "Google: master race" up while ranting about a Spartan's eyes turning blue during the augmentation process. This was after he'd already ranted extensively about how the humans in Halo are fascist. Unless someone's age is in the single digits (in which case I don't imagine they'd enjoy Cinema Roberto's rapid fire pretentiousness), they already damn well know what he's getting at, and even if he thought people needed to know, he could have just said it. But he had to give people the condescending "Google it" message instead.