...and that's 100% true - it's an Italian company, and it's the market leader in Italy. And it's using the same recipes to make pasta in other countries, too. Don't see anything wrong, neither with the slogan, nor with the approach...
Except that the consumer isn't actually getting the product that made the brand #1 in Italy, are they? They're getting a differently-manufactured product with the same facade, but we both know the implication is that you're receiving the same product that has produced the property about which the company is bragging.