Perhaps, you have read it yourself by now, but five of the Top 8 Decks of GP Seattle are Faeries. The Top 3 after Round 15 was exclusive Faeries (played by Luis Scott-Vargas, Paulo Victor da Rosa and Benjamin Lundquist), the best ranked non Faerie Deck came in fourth R/B Beatdown followed by the fourth Faerie Deck. 29 or 20.9 % of the Day 2 Decks was Faeries, it was the most common Deck on Day 2. To quote the coverage article:
If your Meta reacts fast to Grand Prix results you better prepare tor faceing Faerie hate.
Next week PT Honolulu will be Block Constructed but it is followed with Grand Prix Sao Paulo which will be Standard again. I'm not sure if Faerie will have such an run again because Players will expect them like they expected Cascading Swans in Seattle.