Many of us on these boards remember when the DII and DIII champs did a lot of damage at the NCAA DI tournament: Carlton Haselrig of UPJ, Karl Monaco of Montclair State, just to name a couple wrestlers.
I believe the NCAA ended DII and DIII participation in all NCAA DI championships (track, too) in order to "preserve the integrity of competition within each division". I don't believe this change did any favors to DII or DIII wrestling.