I think the subject matter makes it interesting conceptually, not gameplay.

Execution matters regardless, but not all innovations are in mechanics of gameplay.

I think you're overly inflating the word "interesting" here. It doesn't imply novelty, innovation or anything groundbreaking. It's just of interest, which isn't a high bar.

Can you name another multiple choice game about this subject?

Depression Quest?

not quite the same subject but i think depression quest executed on its subject matter better than this did