When I first started playing asl, a BAZ that fired WP added TEM to the TH DR (it wasn't using ATT, so Case Q applied and there was no EXC in C6.8 for a BAZ firing WP as there is now), and if it hit, the TEM applied to the WP moral check as well. Basically, you had TEM applying twice to an attack. Now that has since been erraticized, and TEM only applies to the WP MC.
So, yes, I think the entire BAZ firing WP was not thought out completely by the writers of the ASLRB originally, so oddities surfacing all these years later isn't surprising.