You give a slightly broader definition of group ostracism. However, section 19 of Bill C-11 refers to reprisal, but does not cover reprisal made by a union against one of its members who may have revealed something about another unionized employee. For example, when the whistleblower goes to a union meeting, he may be called a sell-out or a traitor, etc.
Won't the new bill, Bill C-2, address that problem?