Okay, so these conditions DO work. I think part of the issue is, and it’s possibly a bug, is that when I added these conditions as an OR condition to my header template along with my other conditions, the output wasn’t being respected by bricks.
Basically, this set of conditions doesn’t work and I think it should work.
However, when I created a NEW template that only used the dynamic data conditions the header DISPLAYED as expected. Which is odd. I would expect the the template to display if any of these conditions are met.