Definitely can relate to parts of what you said. ENTPs that I know often try to coach me on people skills, but often I cant help but scoff at them because they dont seem to be far ahead of me.
I see very clearly how ENTPs could be 'people people', but again, this isnt their natural strength. (They may seem very smooth because they see the big picture clearly and interact with it (Ne keeps their focus on it, and is by its nature interactive), and when they extrovert, the Ne is chained to the Fe)
Though the ostensible problem here is that ENTPs' feeling function is low (third) and they do not have the natural sensitivity that the feeling oriented types tend to. They tend to make better 'people people' than INTPs because they are more in tune with the F, and Ne is more adaptable than Ti, but they ought not to attempt to keep up with the Fs in such activities, thats not what they were 'built' for. As again, people skills come from 'F' resources and the ENTPs seem to be in tune with them more than they actually are because it lines up on the Extroverted plane well with their dominant function and Intuition is also a supporting factor in this regard (as it allows for them to make more observations that they could apply F judgments to)--this is why ENTPs tend to be more tactful than ESTPs.