No, this would not be a good argument to make. Those other characters aren't higher than universal because they use the word Universe, but (I would hope) they have other context that makes that be the case. The latter gives the Tier, not based on the same type of sentence structure and usage of the word "Universe" as you say. Their context is their own and does not need to be brought up here.
This does not address my point. Look up the word "Universe" in a Japanese dictionary, and you can get 5 different definitions. One of them being "Everything that exists", so it is within the realm of possibility and thus just because he said "Universe" as opposed to "Multiverse" does not warrant any arguments against 2-B. But rather than knit picking the "Destroy the entire Universe" statement. Let's focus on the nature of the individual dimensions. If those individual dimensions are Low 2-C sized individually, the feat is 2-B since we already see more than one of them get destroyed reaching 2-C. And there are still countless of them in lore making it all 2-B territory.
A universe can have within it as many universe-sized dimensions as it wants. They're different spaces, yes.
This can be case for dream worlds/dimensions. And is especially a case for things like 'Afterlifes" or if pocket dimensions are specifically called pocket dimensions. But literal alternate realities and/or parallel universes/dimensions generally have different flows of time. As is the case of World 4
Daiuchu (Literally meaning "the Universe"). And other dimensions are legit parallel.
a new idea was proposed, info goes in favor of it and things to be said against it are underwhelming.
Nothing actually appears to be "New" per say. Other users have been knit picking the same words and using the same dictionary definitions or claiming they "Have the entire transcript of the Japanese version" all the way back in 2016.
Also, FYI. Using Google translate, Word Hippo, asking some random person who happens to know Japanese to an extent that "Kuni means country" is nice. But like the definition of Universe, the word Kuni also has multiple definitions when you actually look it up in a Japanese dictionary. It can also mean kingdom, and it can also mean tribe/clan. Which yes, the Tribe of Darkness is a clan and Bleck instantly destroys his own homeworld. But that's what the void does it devourers dimensions/universes whole.
Time stamp shows a bit of a sky. But in less than a minute, it's all gone. And another minute or 2 after that, it's nothing but an empty void. It nuked not just an entire country but an entire dimension. Also, keep in mind there exists multiple "Interdimensional" adjectives to describe the Void as well as other places like Flipside and Flopside. Which means it devourers more than 3 spatial dimensions. And with time included, this is a 5th dimension. So yes, it not only nuked the alleged "Country/Kingdom/Clan" that Bleck came from, but it would have to have finished devouring the rest of the dimension before it could move on to other dimensions.
But we could use input from other staff.
@GyroNutz @Starter_Pack @Dino_Ranger_Black do you have other thoughts?