That's almost strictly a factor of the volume of people since baseball games generally have 30-50% the number of fans attending.
Of course, but I guess my point is double the people isn't double the traffic hassles and wait time. It's more like 4x or 5x because that second half often ends up in more temporary lots with less traffic control.
I think traffic and access is an important consideration for building a football stadium while I think it's often overblown for choosing a baseball site.