Calling it "marketing" is a bit over the top. I understand what you're saying and your disappointment, but I think the issue is really a matter of unrealistic expectations.
The article is by Prusa Research and it's about a recent, novel 3D printing technique. This is very much an area of active research and also development (not to be confused with R&D).
The "FullSpectrum" thing is the name given to the project in which the developer, ratdoux, who is presumably an individual, demonstrated the technique. There's no Orcas in it, either.