If anything less than 100% mask compliance 100% of the time were responsible for increasing infections, then airlines need to totally ban the consumption of any food or beverage in flight. They would cut what little in-flight service they have to zero, and the flight attendants would be walking up and down the aisle continuously, looking for people who sneaked a snack or beverage on the plane and then smack them. Six hour flight and halfway there you're thirsty? TOO BAD