So let's take the "foot" out of football? I hate this idea but agree the extra point is too automatic.
How about this: keep everything as is but move the line of scrimmage for PATs to the 18 yard line, so you have to make a 35 yard FG for the PAT. Still fairly high percentage, but far from automatic. Teams will be more apt to go for two, especially in bad weather.
How about doing that just in the 4th quarter? Make those soccer players sweat a little bit.