Pile Bunker not Removing Certain Buffs

I was in PvP earlier and tested Pile Bunker against the Crusader buffs quite extensively on Justin's server.
Of 20 trials on a Crusader, neither Auto-Guard nor Defender were removed (Pile Bunker explicitly states that these buffs are removed).
I also tested it on Assumptio, which WAS removed. Have yet to test on Kyrie, Millenium Shield, Reflect Damage/Shield, Steel Body, and several of the others (due to not having another RG/Crusader -same account). I will do so in the near future.


Kyrie Eleison - Not Tested
Assumptio - Removed Properly
Mental Strength - Not Tested
Gentle Touch-Convert - Not Tested
Gentle Touch-Revitalize - Not Tested
Guard - Tested, not removed even on successful hit
Shield Reflect - Not Tested
Defending Aura - Tested, not removed on successful hit
Reflect Damage - Not Tested
Prestige - Not Tested
Banding - Not Tested
Millennium Shield - Not Tested