About to. Not did. There is a difference. Also, you are exaggerating it. They shook the universe (its heavily noted the DBZ universe is very small compared to everything from Gundam to the DCU), but they didn't come close to destroying it.
EDIT: Example of the smaller range of the DBU:
About Beerus' and SSJ God Goku's universal shaking shockwaves - Dragonball
Also keep in mind, nothing here puts him above Superman. Superman has actually altered space and time with his punches. Yes it sounds like bullshyt man, but its comics. What are you gonna do? read this:
http://i.imgur.com/FDEIvCQ.jpg
That kind of feat is a standard "top tier" feat as well. here is a scan of Thor doing the same thing:
http://i.imgur.com/rowTo5h.jpg
&
http://puu.sh/kjf2V/a7eabe5bb8.jpg
Remember, when it comes to DBZ the manga takes priority over the anime:
Dragon Ball Super 004 - Page 12 - Manga Stream
&
Dragon Ball Super 004 - Page 6 - Manga Stream
Goku is just now getting to a level where he can compete with these top tiers, by his own admission.
Also DBGT feats don't count as GT is no longer canon. A peak Goku (non powered up) had his highest physical lifting of 40 tons. I'm positive he can lift much more than that as various SSJ levels, but his base strength is even under Aquaman levels. Its not meant as a diss to him, its just his strength and striking power feats are lackluster compared to his fictional peers.