Another explanation for the increase in fouls might also be the "no layups" attitude some teams take in the Playoffs. What might be an uncontested layup in the regular season becomes a "make 'em earn it" foul in the playoffs.
1. NO LAYUPS! 2. I agree with what you said. The data was really interesting, but players are definitely more aggressive in the playoffs. Kevin Martin will get his foul shots, that's for sure. He might get banged up pretty bad on the way though.
