Finding here-document fu in perldoc is not as straightforward as it might be as well.

I must admit this is true. In some sense it is true of all quote-like operators...

In short, I don't think the question at hand is necessarily as obvious as you make it out to be.

I think you're right, in fact I didn't give him a completely RTFM kinda answer, but I explained which two constructs were involved in that statement and pointed to the possibly not so obvious entry points in the docs for both.