Four Clothing Ground Models may have unintentionally not been MOP'd

While checking out other mods, I noticed one mod was covering more clothing ground models than MOP.
From a brief look, the mod doesn't look to be on parity with MOP.
Granted I'm a complete beginner, I already checked in the Construction Set that the models are actually being used, and that the vanilla models do have any visible issue in game.

Example of in-game items you can spawn through console are "common_pants_01" and "extravagant_skirt_01".

The ground models are:

c_m_pants_gnd_common00.nif
c_m_pants_gnd_common01.nif
c_m_pants_gnd_common02.nif
c_skirt_extravagant_1gnd.nif