The blogger behind Pro Football Reference on the possible downsides of the NFL expanding its regular season schedule to 17 games, with every team playing one game overseas:

Now, apart from the international aspect of it, there is the issue of the 17th regular season game itself. Many fans seem to object to this, and I’m not sure I see why. The cost/benefit analysis must start with the observation that regular season NFL football is superior to preseason NFL football. Therefore, replacing one game of the latter with one of the former must be good unless there is some particular reason to think otherwise. What might that reason (or reasons) be?

Skipping down to reason four:

My database must now have three categories (home/road/neutral) instead of just two, and that’s going to cause me to have to do a lot of programming, and put a disclaimer into every single article I write? Now that I can see.