I'm not sure if this is working as designed, but every single time I have a character die a minimum of 7 of my total character choices are always robots.
This never seems to be the case with characters from other eras. Just robots.
It was not unusual to have 10 character choices and have 9 of them be robots and I found myself unlocking new playable character types just so that I would have more non robot options.
Is this a known issue, are Robots just supposed to be more common when unlocked, or is this just a bug on my end?