Most likely, considering the destruction of Universe 7 from his and Beerus' battle would include it's additional realms such as Other World, Hell, the Makai and the Kaioshinkai, the latter of which is known to make up 10% of the Universe's entirety according to the SEG. That said, SSG Goku being capable of destroying half of this is probably enough to warrant him as being Universe level.
Idea of Gaslight said:
On the other hand, later on stronger people like SSJ2 Kefla make universal destruction out to be a big deal and Merged Zamasu in the manga also fapped off mere galaxy busting or whatever, so...
I think it'd be relevant to them regardless of how much they were above Universe busters, given that it's known that whilst many of these characters can cause the destruction of the Universe, few can take such. For instance, it was stated that the destruction of the Universe would kill both Goku and Beerus, whilst the fight between two Hakaishin would cause both to be erased along with their Universes. You could say the former was due to unreliable narration through Elder Kaioshin and Kibitoshits perhaps not knowing Beerus' true power, but this seems pretty unlikely manga-wise when Shin made no comment on Beerus being far stronger than he thought during the battle royale.
In regard to the Galaxy Busting statement, I see it as being about the same as Beerus bothering to state he can destroy a Solar System (or Freeza's Planet Busting hype
). Plus, the context of the statement had more to do with Zamasu being pissed off with
than actually bragging.