I would have liked that way back in Campaign: Paradiso, but yeah. I think the issue is that one-off special rules like that feel like something that N4 is trending away from.
I tend to agree. Making them into a multiple-sync unit like the Uberfallkommando does seem like the best "N4" solution.
Eh, Spawn-Embryo is a simple enough rule -- "I still score quadrants/whatever when I'm unconscious during the game". CA does kind of take the cake in terms of having the most unique rules, with five unique skills (Protheion, Shasvastii, Seed-Embryo, Mnemonica, Morpho-scan), so there may be a reason to not add any more. Even Tohaa is down to just has Tri-Core and two unique pieces of equipment in N4.