As has been discussed previously, and it may not aggravate everyone, it is a matter of principle. Why does a company that is supposedly in the business of generating happy customers, as it is they who pay their wages, go to such lengths to irritate the heck out of them? €2 has nothing to do with it. Would those in favour still agree if it was €20? It's a principle of how you treat the people who pay your wages.
And we'll all agree to disagree. It might be affordable by some who do not care; it may not bother some a jot and therefore don't care, but I find it difficult to defend.