I don't know much about Ashe. But you really should be really careful when reading champion.gg wins statistics. For example, Ashe maxing Q has a sample size of 262 games. The win rate might be a result of pure luck. So I would not read much into it. That does not mean that maxing Q might not be the best solution, but the decision should not be made based on this statistic. A Master I player arguing for maxing Q first is way more helpful.