It seems like there's this hidden gulf in chris watching and why people do it. Half of the people find Sonichu to be an important part of watching Chris, and then another half where they really don't give a shit about Sonichu.
(Of course, "half" might not be literally 50%. Might be 10:1 or something like that.)
Sonichu itself is really boring to me. I don't care about Chris' bad drawings. I care about the ideas that Chris has to express. Like you said, hearing Chris getting cranky about getting tackled by cops is the funny part, not the bad Sonichu drawings.
Whether his cranky writing is in comic format or video format, I don't really care. (Well, videos can be a little bit funnier, but yeah.)
Take away Chris' rantings about real life (or allusions to real life), and all that's left in Sonichu are the most boring sitcom plots ever. Hell, even sitcoms have comedy. Chris literally seems to be writing a diary about cartoon characters. Like how a Truman show would actually play out, without producers manipulating anything.
Just some dude living out his life. Going to work. Picking up the kids at daycare. Coming home. Having a beer. Paying the electricity bill. Boring.