now you are junping into 2 arguments, if the terms are refering to the battle itself, then that wouldn't give much, maybe that the battle was 4D in scale, which is true regardless given the 2 characters tiers already being 2-C, they breaking the fabric of space time then they broke their dimension and arrived in another, it doesn't mean that it is another space time, just means that it is another dimension, breaking space time in this case could cause they to go to another space in another time rather than to another space time structure, but more details on what is happening would be nice, also a size for the dimension, since even if it is another space time outright, it would not be worth anything for our tiering purposes
Yes there is acctually, it simply being another space in universe 7, by breaking space time they would have arrived in another space, in another moment in time, but then again, if both statements that would prove that that thing is another dimension is just refering to the battle itself, then how could we even be sure that it is another dimension to begin with?