My aim was to have each episode straw man a rationality behaviour and then steelman it. Where by the end of the episode it saves the day; makes someone happy; achieves a goal - or some other <generic win-state>.

A Disney-like educational show for grown ups? I'm under the impression that this kind of plot works well for children shows, but isn't exactly interesting to an adult audience. Relevant TVTropes links: Anvilicious, Author Tract, Eigen Plot, Asspull, and of course Mary Sue.

Moreover, even if the show turns out to be entertaining, there is a very real chance to screw it up into a freak show and tar the word "rationality" much like Ayn Rand tarred the word "objective".
Steelmanning the weird "rationalist" habits you listed in a convincing way would quite difficult, given that most of them are indeed questionable practices.