That is potentially problematic. If you get an association for something like a VO2 workout that leads to an increase in that PL, while you only rolled easy, you are not getting appropriate adaptations.
Essentially, unless you are doing a workout or ride that closely matches the efforts and intent of a given planned workout, you are potentially misleading AT via incorrect PL’s.
It’s the reason TR has recommended against this type of hack, unless you are actively performing an outside workout via the TR processes.
PS, here is an actual link to the topic you mentioned. The one you did just gets to the landing page of the forum.