The Bundesliga has no arguments to defend itself or can you name any recent success? in like 5 years? Exactly. If Robben or Reus played in Serie A they would have been exposed after 3 games.
If a Serie A team was in the final, both Bayern or Dortmund would have been exposed as what they are: Arcadeball pacemonkeys.
Yesterday we witnessed how a Serie A 9th annihilated the Bundesliga runner-up apart from obvious goalkeeper mistakes which the Serie A per se is not guilty of.