It's interesting because I have never seen this type of hop blending... taking multiple hops and blending them to make a "new hop". I have heard of breeding new hops with characteristics from other hops but not this.
YCH, in particular, has been pushing forward with hop blends as an interesting way to generate new flavor profiles without the 10 year breeding process. You'll see from things like - 7C's, ClusterFugget, Falconer's Flight, Pacific Crest, Pink Boots, Veteran's Blend, Zythos, etc.