I mean yea. The idea of a nano machine cataclysm is fun. Plus bright red is cooler than quicksilver. Lore wise they are practically the same thing though.
Are they though? I could be mistaken but Quicksilver nanites are actually quite different from SIVA. They come from the same base but the Quicksilver nanites were SIVA that came into contact with the energy with the Veil so in theory they are completely different from each other. One is malicious and the other is helpful
Yea quicksilver is modified SIVA. SIVA itself isn’t bad though. It’s just been used by both Rasputin and the devil splicers very destructively. Saladin had it sealed away so Rasputin couldn’t do anything with it after killing the iron lords. After the devil splicers let it out they gave it the command to consume, enhance, replicate. So it was destroying all organic matter it could find and converting it into more SIVA until we killed their archon priest in the raid. And destroyed the production facility in the final story mission.