Some good but not quite star quality players like Ketroc deliberately ignore the meta. Ketroc plays with loads of Ravens, he did this when people said Ravens were strong but hard to use, he still did it when the accepted wisdom was that they were now useless, and last time I looked he was still at it after yet further balance changes to SC2. How he uses them changes, but he likes Ravens and they never stopped being viable.
Games like Chess have meta too. A year ago humans believed that materiel was essential and strong position made up only for small differences like losing a pawn or two. Then Google's Alpha Zero AI says hold my beer, sacrificing loads of my pieces for positional advantage is fine, because I can use that advantage to pin your extra pieces and still mate you away.
