Graphic Design, The Overlooked Artworks?

Curators at The Museum of Modern Art are looking at adding graphic design to it’s collection. Currently they display works in Architecture and Design, Drawings, Film and Media, Painting and Sculpture, Photography and, Prints and Illustrated Books.
Q: Is Graphic Design, not Simply Posters, Museum Worthy?
A: Super short answer, yes.
Q: Why has it taken so long?
THOUGHTS: Modernising MoMA: Design on Display