This screenshot was taken in the current GC, Leia basic'd then Thrawn swapped to Probe who somehow has Self-Destruct.
Now IPD is only meant to have this ability active under these conditions "While Imperial Probe Droid has full Health, or has no active allies, the cooldown of this ability is set to max and can't be reduced"
but these clearly aren't met.
Leia's lead has "Allies and enemies are immune to cooldown manipulation." and since IPD tries to set this cooldown to maximum to prevent him from using this ability, he has access to Self-Destruct at all times
This ability should be locked as per the intent of the ability, much like Maul
