Drill Katar Bug?

[Silent]

Drill katar description according to rms:

Katar with a rotating drill instead of blade. It seems as it would break any armor in its way.
Small chance to force de-equip everything the target has.
HIT + 30

So from my understanding, this is similar to using full strip lv1.

The bug comes from testing on my guild mate. When I successfully full stripped, there should have been a duration in which they could not re-equip.
But no such durations occurred, and she was able to put her equips back on asap.

Can someone else confirm if this is really a bug... or perhaps a misunderstanding i've made somewhere....

(tested using @duel, then tested in pvp room)