@ChubbyRain Other than the Jeskai Mentor deck, most of the best performing gush decks were a bit off the beaten path. To be clear, I wasn't stating that Gush and Shops aren't good, but rather that the better performing lists were non-standard.
Also, implying the winrate is nearly useless seems a bit silly to me. It really depends on how you want to use the data. If you want to know what you're likely to face at the top tables, obviously using "gush has a sub 50% winrate" to conclude "I don't need to worry about it after the second round" or "gush isn't warping the metagame" is not good logic.