I think the Ne primaries are the ones who are susceptible to this (your ENPs), considering the Si inferior.
Because honestly a lot of INPs have decent Si, it's actually the tertiary "cop out" for us and we use it to hide when we're tired or scared of extroverting through (wait for it... wait for it...) ... Ne.
So only a portion of membership will typically show this, and not necessarily the highest percentage of posters here (INPs).
I'd avoid "ought to be" as a phrase, but I agree with your thinking wholeheartedly.... it's one of my larger weaknesses, and I have to forcibly shut down Ne in order to get anything done. If I don't concentrate, I'll float into brainstorm/connection mode again because it's just easier and non-committal in nature.Ne actually does some times manifest itself as a lack of self-control; it's an addiction to novelty. Ne-ers some times become so curious to find new meanings and new connections, that they can't stop exploring a given a situation, even when they know they should. It's pretty clear that this can cause negative consequences in some scenarios. And obviously we have "free will" enough to eventually stop, but Ne certainly does cause Ne-ers to be less disciplined than they probably ought to be.