I believe that's because of the way the schedule worked this year due to the combined first week of the year. If things work out the same next year, I'd probably recommend making the final one week long and having everyone play a full regular season. Yeah, I think it was just the result of how MLB changed the start of the season to the middle of the week. I just don't think anybody thought about it at the time. We may have the same issue at the end of the MLB season, since that is Wednesday this year where it always used to be Sunday. That would only affect the teams playing for the championship (i.e. not me).