Anyway, I'm not sure why you said this. Do you think ESTPs often use the word 'fag'? Some dickish ones do but like I said before jerkish ENTPs often will as well. You can extend that to any TP or to any other type really.
Also, what you are saying about having an underhanded wittiness, I think that goes with him playing a satirical character, and similar wittiness can also be found in Sascha's humor. Also, I would say that Stephen Colbert is just clearly extrodinarily quick and intelligent so if he seems more clever than other ESTPs come off, that could be why.