I haven't actually read Hemingway, but I assume the people that love him do so for some reason. With that in mind, my interpretation of this comparison is akin to a comparison between Rush and My Bloody Valentine, or Led Zeppelin to Brian Eno, or Bach to Phillip Glass. The left sides of those comparisons are much more explicit. The right sides are implicit, mushier, and more subjective; they aren't necessarily intended to create a uniform response among their listeners. This isn't generally considered a failing, and in fact all of these artists are highly respected in different, but overlapping circles.