So that means these supplements are really just telling us that playing a cat in this game means we aren't gonna explore the full character creation system, we aren't allowed to choose our play style, and we can't even work out on our own what our role in the party might be.

So in the future if there's a game we see has a Cat Expansion, we'll get it, but only to see if it has stats for playing as a cat that aren't in the core book. Otherwise, we'll be alerting you to its existence and then ignoring it for the rest of the episode. For Content.