Heroes 5.5 WarGame Edition - Tactical Edition.

Yeah, that's true. There aren't many of them, I agree, but I would like to emphasize a couple of things here, namely the possibility that they won't trigger (which reduces their effectiveness, and also requires a bit of risk when using them). The second thing is their interaction with the "Soldier's Luck" skill.
But this is just my opinion; maybe they should be moved somewhere else and the number of groups reduced to three. I've always considered random effects to be special, especially in connection with the risks involved.