What I’ve written can be seen as short 2 liners derived from the existing salespages. Anyone can do that.
The challenge that most people have - and especially with EOG - is that they have no clear idea of what Actions they will actually take, or even what specific tangible Goal do they want to commit to. 
I too would like their word on it, hence the tagging.
Yet, I don’t think my decision strategy would change even if the Q Store COREs are the full subs. Not for me, at least. I’ve always been stacking. 
I think you know my answer already, as I mentioned EQ and PS in your other thread.
There is nothing wrong with more than 3 Cores, we’re doing that all the time.
The issue is that takes a little longer to reconcile & express all the scripting - and it is harder to discern the details of what is happening;
Lesser scripting = faster, more pronounced, obvious effects, and clear nudges.
Eg: S&S by itself is totally obvious. So is Primal.
On PS, the specific effects of each feel a little dulled - even though the results get better.
With Khan or Stark, it’s not even clear if S&S or Primal are in there - but results get even better. 
Same happens with Ascension or Mogul -> Ascended Mogul -> Emperor.
The obviousness of Mogul & Ascension is lost when using Emperor.
Yet, both the Confidence and Financial Opportunities actually improve on Emperor. 
So,
If you want pronounced obvious effects, or
need the subconscious/subliminal to tell you WHAT to Do,
then Limit the COREs to one or two.
While…
If you choose your own actions and don’t wait for subconscious nudges, and
can track your progress without overthinking “if any part of the sub is working or not”,
then fearlessly take in all the COREs you want to ACT on.

Those are perfect. They never conflict with the other major programs. Feel free to add them.