Welcome to the forum my friend!
I personally believe that comedy undoubtedly has to occur in almost every wrestling show. It's all about entertainment value and if serious segment one after the other constantly start to crop up through a show then the product begins to turn slightly stale with the audience unable to simply boo/cheer throughout a show, variety is a must to spice things up.
As far as Eric Young/Robbie E go I'd hate to see them do the comedy stuff forever (and I very much doubt they will) but if it fills this void for now whilst at the same time gets them over then I have no problem with it whatsoever.