Also, Hollander stole his cell and Ageals cells then used them on the solders that deserted with Genesis, due to degradation qualms, to further a revenge plot on Shinra while he fails at healing Angel and Genisis degradation…
so yeah, you get lots of Angel and Genisis copies they they can influence similar to how Sephiroth can influence Black robes with S cells.
(Side note, Angels mom was not killed by his own mom, she committed suicide, and it rocked ashrams conviction for a bit)