I see a distinction between WB and Ubisoft, Take2 or Square. You don't. Valve, Amazon, WB and EA are all the same kind of publisher to you. Whatever.If Disney's gaming efforts could last more than 4 or 5 years at a time I'd have gladly included them too. The fact that WB also has tv and movie studios attached to it does nothing to change the fact that they are a major publisher of games with six big internal studios focused on console gaming, a few separate mobile and support studios, independent publishing deals for other WB IP games that they don't make and at least one truly golden gaming IP in the form of Mortal Kombat. And rather than being a new interloper they've been at it in the AAA space for well over a decade now. You might as well be saying that Bandai-Namco isn't a big independent publisher either because they're an anime and toy company too.
At this point I don't care and you won't change my mind