Thanks all for the constructive discussion. A lot of good ideas here.
@MastersRising
I believe that since the end of EP's turn now registers as an attack to work with zader (L) for TM removal, it also does the same, activating expose on any of the droids that have both shock/expose. This affected my P3 because all the droids had shock, a few got exposed by Poe, and none had health left. So the expose killed them with EP's next attack on B2. This then leads to EP not getting 100% TM, and the tank gun getting TM. Both things chirpatine is designed to avoid.
Hope that clarifies it. Let me know if not.