I would argue that the downsides are worse for fans of European sports. When the Red Sox/Giants/Rangers/Knicks have a bad start to a season, you scratch that season off and await next year. When my soccer team (Wigan Athletic) play badly, as they are doing this year, they face relegation - leading to an exodus of players, a dearth of money & lower attendances
I've been a fan for my entire sentient life, so I weigh up the pros and cons. Historically, we have always been a lower league team, so our five years in the top division have been a peak which we should be thankful for. It's cold comfort after some of the games I've seen this year, but perspective comes with time.