Cat and Girl is shit not because it is "unfunny". It's ridiculous to deem it funny or unfunny, like you said, it's about intellectualism.

It is shit because its "wit & intellectualism" seems to be designed for people who don't really read as much as they think they do. In the end, the comic introduces NOTHING NEW, only restates already stale concepts. (unless you think the fact they're being restated in visual form makes them somehow fresh again)