One downside of faster games is fewer concession sales. Some teams have countered this by moving alcohol sales into the eighth inning:

To combat that time crunch, at least four teams — the Arizona Diamondbacks, Texas Rangers, Minnesota Twins and Milwaukee Brewers — have extended alcohol sales through the eighth inning this season. Others, like the Miami Marlins and New York Mets, still stop after the seventh inning, the historical cutoff, but haven’t ruled out changes.

ESPN.com

One reason many teams cut off sales in the seventh inning was to give fans a chance to become a bit more sober before driving home. If that really was important to the teams, faster games should have alcohol sales ending earlier, not later.