Most of the modern quilts I have seen (in books at the library) tend to use solid color fabric. I have nothing against them, but I practically never buy solids and prefer the myriad opportunities allowed by fabric with patterns. I suppose it's all a question of taste. I think I may try a "modern" quilt with more traditional patterned fabrics.
As to whether they're easier -- they certainly look to be of very simple construction, but (again) nothing wrong with that. Whatever floats your boat. Maybe the fact that they're easier will encourage some younger people to try quilting and they may eventually attempt some more traditional patterns and techniques.