Bingo. These types of litmus tests always get strained the more an organization grows, and eventually organizations outgrow them.
And as frustrating as these things are from the to-be-hired side, I have dozens of colleagues who strongly complain about these practices in their own companies. They always use the same words -- "false positives", meaning that someone was considered an ideal candidate but they failed the do-i-want-to-play-cards-with-them test.
What surprises me is how everyone claims to be data-driven, yet when faced with the aspect of hiring, the same choices are repeated over and over, which (shockingly) leads to the same results. In a field where creativity is important, we as an industry are forcing people to fit into a certain persona, all with the goal of being predictable, interchangeable parts. Great minds may think alike, but I've never heard "like minds think great."
