Here's what Keirsey actually wrote about INTPs:
INTJs have more of a focus on minimising task redundancy, than verbal redundancy. Some of the most loquacious posters on this site are INTJs. And they like to repeat their pet theories ad nauseum.What is important is that the underlying structures of the universe be uncovered and articulated, and that whatever is stated about the universe be stated correctly, with coherence and without redundancy. ~ The Architect, PUMII
If you're using yourself as a model INTP, it explains why you've got it back to front.
Try reading Kiersey to understand the difference, he definitely is one.