You are failing to realize that the question is a yes or no question,
the question is "Is the true form of Yogiri beyond the concept of dimension? for example no matter how many dimension is stacked, you cannot reach him"
This question can be answered by, "Yes" or "No".
The author is not a battleboarder and his reply was this
"Dimensions, etc. are elements in one universe and may not exist in another.
If there is such a set of various universes, ...... well, well, Yogiri can ignore all of those things."
Even the reply itself is not so clear
I am fine with the Ultimate Ensemble thing, but the Ultimate ensemble is mentioned just once with no more context later to it, and based on this question which I find to be a battleboarder goading the author in his direction. Together if both are valid, they are okay for 1-A. but take each one of them alone, with both shaky, they should not be
Also,
the author reply here, is it possible to send all chapter or the chapter where Ultimate Set was mentioned