The WBC and olympics are tournaments, not regular season. WBC is really just an exhibition played by players not in peak baseball condition. Baseball in the Olympics is pretty much the same.
Ties may be boring but they do not change the rules of the game for the purpose of a cheap gimmick. Ideally, I'd like to see them keep playing the game the same way baseball is meant to be played until there is a winner. The purpose of ties would only be to save pitching staffs. Ties were part of the early years of the game before they had lights.
Ties are not ideal, but they are acceptable to me. Extra inning baseball is not real baseball and I have ittle interest in watching it. Thus, the winner is not a real winner. I'll take a tie over that.