From what I remember of DBZA, they very rarely touched upon all the edits that the English dub(s) had done. A lot of the humor from YGOA stems from changes in the 4kids dub. Shadow realm, fate of the world over card games, invisible guns, etc all originate from the 4kids dub. YGO is silly, but the 4kids dub did it (and many other anime for that matter) no favors. If they didn't like poking fun at the series, TFS should've focused on the dumb localizations. The problem was that A LOT of people have a huge fondness for those changes. Lots of people like the changes in the YGO dub but once they learn about it, rarely will anyone will tell you that they made the anime better or have a problem mocking them.