The purpose of the comment seems fairly straightforward and highlights exactly what was originally claimed, that the section of the ToS that claims Instagram can close any account for any reason is only true for people who have no influence or notoriety. It is not true of public and/or influential figures who could have a strong claim against Instagram for arbitrarily deciding to close their account.
That one set of rules apply to people in power and another set of rules apply to the general population is certainly something to take into account.