Even Liquid hasn't won anything so far does that make them a bad team? No. Similarly, gambit maybe only won tier 2 events before, BUT they had convincing showings at various events, which never used to happen before.
Peak at the major or not, why did they seem lost as soon as Zeus/Kane left, they soon have had at least 1 good showing at one event right, if they won only because they were good? When did they go then?