I just see it being a fun nod given both properties were Miramax. I don't think it was meant to place the movies in the same universe. I'm choosing to not overthink it by believing they're separate universes and that sometimes an Easter egg is just an Easter egg.1. Mallrats and Dogma exist as in-universe movies in the View Askewniverse. Why not Clerks? Heck, Clerks: The Animated Series implies that both Clerks and an animated series exist, although that series is very meta and confusing.
2. I didn't see them state that they were making a Scream movie in the actual film. Let's say they were, the Woodsboro Murders are public domain. Why can't there be Scream and Stab movies in the Scream universe?
3. You say not to take it seriously, but Jay literally called him "Silent Bob" AND they appear on the credits as Silent Bob/Kevin Smith and Jay/Jason Mewes, meaning that they are 100% the same characters. Whether they are the same versions from their films is the question, but I don't really get any indication otherwise.
Don't get me wrong, I see View Anskew, Scream, Zack and Miri and True North as separate film series. Logically they should occur in the same universe, but they don't crossover. It does mean that the victims in Scream would go to a Heaven with a God that looks like Alanis Morissette though, lol. Don't overthink it.