I don't think that's a reasonable assumption to make. "Your family" could just as easily be referring to adult family members only (spouses, siblings, parents, etc.).
It seems like you're jumping to that conclusion solely because it makes his comments more inflammatory.
Vague talk of investigating 'your families' comes off more as an attempt to intimidate; arguably the vagueness is intended to provoke anxiety and worry to a greater degree than a specific allegation (as above) that could be refuted or debunked.
The comments were about "digging up dirt". Sleazy as that is, it doesn't even require personal contact.
Even simply exposing that information is a threat, possibly causing a chilling effect - which is exactly what this Uber exec wants.
>disturbed individuals [...] looking for a target
What??? Where did you get here from "digging up dirt". (For one, you don't need dirt to post someone's name on /b/ or whatever you have in mind.) The level of hyperbole on this submission is awful and pains me to read.
"No, no, we won't look ONLY into your children, we'll ALSO look into your spouses, siblings, and parents."