If you are referring to the 'end pieces' there on the calamari, it is not all that uncommon. From my somewhat limited experience, when I order squid from a chain place or a lower end place (where I picture they order all of their food from Sysco), you get just rings, but when you order it from a better restaurant, and this applies not only to calamari, but also when served in paella in a couple of Cuban restos I've visited, they include the whole squid minus the head and looks like what is pictured.
I agree that it is a turnoff in appearance, but the taste is fine and it is authentic as far as I can tell.
Yes, we were told that some people like those better. We had to pass.