Since last week, the meta has considerably evolved. Iceborn Poros was by far the most popular archetype at that time, but now that the environment is more hostile to it and the honeymoon phase is over, we don't see it as much. This massive change caused huge ripples in the meta.
Ahri Kennen, despite all these changes, is still the pillar of the meta and the best-performing archetype. You should still expect to see a lot of it in the Gauntlet.