It always has been. Just look at a bird like a Bresse. You can only advertise it as a Bresse if it was hatched and raised in in France. Otherwise you have to advertise it as an American Bresse. There's a world of difference between a svart hona and an ayam cemani to the trained and economical eye - one is usually worth $300/bird one $1000/bird. That matters of course. And hatchery chickens have always been a totally different animal than the same breed hatched for show to the breed standard. (There's a whole thread on hatchery birds VS show birds on this website that's popular and worth looking at.)
You can't just present some random mutt as an AKC purebred german shepherd without getting called out and you can't present easter eggers as ameraucanas without some backlash.
That anger you felt, that denial at being duped, the bargaining... (surely it can't be real that I've been ripped off? I spent lots of money on these! Shouldn't these people be punished for ripping people off?). Those are valid feelings. When you realize you didn't get what you thought you were getting you feel angry, confused, and realize your product is worth a lot less.
So yeah, it matters if you are passing those same bad feelings and wasted money onto other people.
Unfortunately easter eggers and ameraucnas are particularly hotly debated because they are a newer breed (not officially in the APA until 1980's). Which is where some of the mystery of the breed comes from. For example one legal issue is that these companies have lines that go back 60 years that they've been advertising as ameraucanas since before amerauacanas were an official breed. When the breed standard was written down, the companies didn't change their lines, breed to a standard or do anything to change their birds - they just bank on the consumer assumption that their birds were correct. Now they have a horrible reputation for Ameraucanas because you're right - they rip people off.
So, like, you can advertise your easter eggers as easter eggers that you guarantee to lay blue eggs... (Though I would not do that unless you also understand the simple dominant genetics behind the egg color and actually know it's guaranteed...) You can even sell these as ameraucanas if you so insist. Lots of people do on sites like
Ebay. They get a horrible reputation for it and would be laughed out of a poultry show, but they do it. But it's up to you if you value the money you spent on these chicks over professionalism, reputation, and not passing on the bad feelings you got from finding out you got ripped off onto other people.
And - accidentally or not - ripping people off will always get people up in arms for the same reason you were upset.