It can be a realistic position, but not all legislators agree.
> The Authority will protect businesses from misleading advertising by other companies and establishes the conditions under which comparative advertising is diffused by any means.
> Advertising is misleading when it is able to mislead the undertaking to which it is addressed, jeopardizing the economic behavior, or when it is likely to injure a competitor. The deceptiveness may relate to the characteristics of the goods or services, such as their availability or date of manufacture, the price and conditions of supply.
> Comparative advertising is instead that mode of advertising in which a company promotes its own goods or services comparing them with those of competitors. This type of advertising is permitted only when it is not misleading, compares homogeneous goods objectively, it does not create confusion among businesses, or cause discredit to the competitor.
[https://it.wikipedia.org/wiki/Pubblicità_ingannevole]
[http://www.agcm.it/consumatore/consumatore-competenza/4525-d...]
Seems like a nice ground for a lawsuit or a class action.. (at least in EU)