This is regarding Kyle's blog post about Valve's potential violation of sanctions:
Kyle didn't go into this (perhaps because he wasn't aware), but the sanction against Mrs. Nesterenko also applies to her adult children.
According to
a spouse or adult child of any person whose property and interests in property are blocked pursuant to subsection (a)(ii) or (iii) of this section;
Since Mrs. Nesterenko was "blocked pursuant to subsection (a)(ii) or (iii)," her adult children are also sanctioned.
Source: https://www.reddit.com/r/DotA2/comments/y0lmk0/re_potential_violation_of_sanctions_it_applies_to/