It's not a particular view. The connective, associative abstract elements of Ni come straight from Augusta's work.
I think that you might be misunderstanding dimensionality, and this is probably at the heart of what has caused you to mistype so many IEI's as ESI's. Se is a perception function that, among other things, assesses the amount of force an individual has. It's not aggression in itself, a closer definition is the perception of aggression. In IEI's, this is valued. This doesn't mean they won't be aggressive, this means that when they attempt to be aggressive/assertive that they will typically miscalculate their use of force due to poor perception of how much is needed in a situation.
I'm writing this to say that, it is not contradictory for an IEI to engage in aggression, for recreation or otherwise, neither is it a particular quality of an Enneagram type or instinct. This has to do with the idea of force, that it is a valued function, and that it is dual seeking. It may not be in a type's main area of focus, but it is still function that they will try to sustain, engage in, and uphold. So when I say they show subtle elements of aggression, what I mean is that they will engage in the use of force, that due to this, there is an element of force in their personalities, though whether or not this is apparent from person to person is another matter.
Let's look at this another way. You zoom out just a little bit, you can see that all types of a quadra are not so dissimilar. Conceptually, think of 4 different tables. Each of these tables has a different set of ingredients. These are the valued functions. Now, assume you are going to make a dish. You go to one table, the Beta table. The dishes that result from this may look different, taste different, but you are using the same ingredients to make them.
Through this lens, we can see types, then, as an exaggeration of each other. You are just using a microscope on specific parts. You take Se of an IEI and put it in front of a fun-house mirror and an SLE is on the other end. You take the more Ni of the SLE and put that in a fun-house mirror and you get an IEI. Fun-house the Fe of the IEI and you get the EIE, and so on. So, for you to imply that 1D Se is disassociated with force (correct me if I'm wrong on that implication) due to dimensionality seems to be an error on more than one level of conception. I could have named you quite a few IEI's on here as examples of this, but it is not unlikely you would be typing them as something else (ESI).
And, FTR, I don't have anything against you. That may have sounded like a criticism earlier, but that wasn't my intention. I can appreciate people that put their thought processes up for analysis and try and substantiate their claims, regardless of whether or not I disdisdisdisdisagree with what they are saying, which is how I see you. I have a more difficult time engaging in discourse with more nebulous thoughts, which again is something I more so associate with IEI. Having a person's thought readily available, is by my estimation, a good thing in regards to more more intellectual pursuits such as this. I just figured I would put my own 2 cents in since you were asking for opinions.