Well... Since Easter Egger is a catchall term and not a name of a breed...the term Easter Egger only indicates the presence of the blue egg gene, but not necessarily a pristine pedigree... I think this is why non-standard Ameraucanas still fall into the Easter Egger category. I feel like in a lot of ways, it's like the term "Pit Bull" in dogs. Pit Bulls are not a breed... it's just the name of ANY dog that fits the Pit Bull reputation, and appearance... specifically that of the American Staffordshire Terrier, whether they are pure Amstaffs or not.
If someone breeds two Ameraucana's and gets a percentage of chicks that do not conform... then something is going on in the original Ameraucana pair's genetics that should call into question the purity of the breeding pair, because purebreds are supposed to breed true 100% not counting identified and predictable stacked recessives. And if they don't, then their pedigree is really not all it's cracked up to be and the whole Ameraucana vs EE debate is out the window anyway. But this is really difficult to do in a breed that is by all accounts still very new, and should probably be considered still in development.