[2019] Possible Bug: 5's Zeta interaction with Deathmark

I don't know if this is a bug or not, but when I play against a Sith Empire or Palpatine team with my clones and either Rex/Echo gets deathmarked by (I think) HK-47 and defeated, I lost 2 characters at once. Both the Deathmarked character and Fives die out.

Is this as intended? As I understand it, Five's Zeta should supercede this.

Fives can't be revived. When another 501st Clone Trooper Ally would be defeated while Fives is active, they recover 100% Health and Fives is defeated instead.

If Fives is defeated this way, 501st Clone Trooper Allies gain his Max HP, Max Protection, Speed and Offensive Stats in addition their own until the end of the battle.

They key word here is would. Would implies that they are not defeated. I imagine this as Fives jumping in front of his brothers taking the killing blow instead. The targeted Clone trooper isn't damaged at all. They'd still be susceptible to whatever debuffs previously existing on them - including Healing Immunity (which would affect getting the Max Health as stated in the first paragraph) as well Deathmark, meaning they could be harmed and defeated relatively quickly unless dealth with, but they'd at least be alive.

So is this a bug? Am I just complaining to complain? Should I just move along with nothing to see here? What's going on here?