I think it matters to justify the price. If a reefer or vendor wants to charge $300 for a 1 inch RRU Angry Bird frag, then it better be a frag from an actual RRU Angry Bird colony. I'm sure there's color morphs of this acro that can pass as Angry Bird, but selling the morph as the original coral is misleading and downright shady.
The problem is that the Angry Birds that RRU is selling now isn't even the same as their own original Angry Birds. Some other places still have the original, though.
In other cases (MCC Prom Queen and CC Pink Highlighter), the same coral has multiple names.
I think names are important to identify what you're buying. How much value that adds and how much you're willing to spend is entirely up to you, though.
I am willing to spend a little more on named coral/anemones with lineage for the simple fact that I know what I'll be getting, and I know it's what I want. I've been burned a few times from less reputable sellers, so for me it's worth the little extra money.