As much as you would like to start yet another boring discussion about holes in other peoples logic (I have noticed how much you enjoy those), your assumption in fact is not correct.
My comment was sarcastic on purpose, to me the answer is obvious - asking why you might need Pages in a Club is like asking why you need Pages at all. Clubs is community within a community, why it should not have access to all features available for the main branch and why the use cases within a club should be different then the use cases for all other apps that have clubs features? If it is difficult to develop, so be it, I can accept that. But I can't believe it is possible that IPS did not include Pages features in Clubs simply because they thought it is not useful. Hence the "surprise" in my comment.
If I wanted to be a straight shooter, I would say instead: "Matt, the use cases for clubs usage are exactly the same as for main community usage and for all other apps that already have clubs features. You want to isolate particular database in a club, the same way you prefer to isolate particular gallery or discussion topics". Instead, I decided to be funny with a short sarcastic one liner. Shoot me. At least I didn't use a gif.