I don't understand your question, but I already explained my point. Size of individual things loses all meaning on Tier 2, so you can't use the size of a singular universe as the quantification, because any complete Space-Time Continuum is Infinite from our perspective. You can't quantify the distance between destroying one Continuum and two either, it is not a simple matter of multiplication. For Tier 2 we require multiple locations being destroyed.
Furthermore, you are making an awful lot of assumptions regarding the World of Void. All we know of it is that it is a dimension / universe devoid of space-time, filled with an infinite amount... of nothing. So it's really just nothing isolated from the rest of reality. The entire point of the dimension is so that the warriors can go all out without the risk of destroying planets, stars, the universe, etc, since there is literally nothing to destroy there.
Void Dimensions, realities devoid of time-space, etc are incredibly common in fiction, and saying that a place is "Infinite nothingness" doesn't tell much about it. Your earlier suggestion that the description could be interpreted as 1-A is also ludicrous, cause there is no mention of higher dimensions, multiverses and transcendence over all modes and levels of reality. There is jut one line saying it has no space nor time. By this logic, one could be an equal troll and say that it is a 0-Dimensional location.
Of course, it isn't. It is still a place the characters will enter, fight in, etc. There are clouds inside, there will be an arena, the combants will likely be able to breath through some Angel magic atmosphere thingy, etc. So it clearly won't function as a true void of nothingness we sometimes see in fiction.
Look at the Dark Dimension from the Dr.Strange movie, it is literally devoid of time entirely. Dormammu is said in the movie to both predate the concept of time, and to have been born from the fear of death mortals across the multiverse have, which is a clear contradiction since he can't predate all life in the multiverse and also be born from it... Until you remember that he is beyond time altogether, so such a "contradiction" only applies when we think from the perspective of linear time. And indeed, in the end of the movie when Strange introduces time to the dimension, Dormammu is dumbfounded. It's an experience completely alien to him.
I suspect that what the "No space and time" will effectively mean in terms of story is that it will be disconnected from the 12 Universes, and while the tournament happens there no time will have passed from the outside perspective. Also, the fact that people like Krillin or Master Roshi will be fighting inside it also puts doubt to the "Devoid of all space and time" idea. Either DBS has completely thrown all logic out the window, or the place actually has some degree of space and time, as people like them logically shouldn't be able to sustain or comprehend true nothingness without space and time.