I think you are mistaking the meat of my critique. The issue isn't the use of an original character who is on the level of some of the top guys in universe. The issue is that there was no buildup to sell them as that kind of badass. We got introduced to the guy, he did some big standard elite network guy stuff, and then we were told "oh he's totally on Adam Smasher's level" via backstory dumping when we haven't seen him do anything to support that kind of skill or reputation.
"This Original Character (do not steal) you've never heard of could take Adam Smasher" is just bad writing, and it is again made worse by the fact that the noncanon Astor family are suddenly revealed to *also* have in house AI and the aforementioned setting breaking biotech.
If you want to make Taylor's secret family special
@SpiraSpira, I think it would have worked much better to give them one hat and have them run with it. Giving them biotech that lets you compete with full borgs physically is whatever and I can't say I particularly like that as a setting element, but using that to augment their super assassin to Legend levels would break versimilitude less than them having the biotech and then *also* being lucky enough to have an Adam Smasher style humanity-lol guy.