On the Nobel Prize in literature and Bob Dylan

It was announced that Bob Dylan won the nobel prize in literature. Immediately much discussion sprung up, and many people were in joy. I'm a bit entauscht, and I have a feeling as if there should be another announcement for the prize for proper literature.
Not that I'm against Dylan: I sometimes enjoy his music, and surely his lyrics are an integral part of his performance. It is rich, interesting, entertaining, emotionally sophisticated, at times political. Still, if read it is not outstanding poetry, compared with many who have not been deemed worthy a Nobel.
My gut feeling tells me that what we have to do with in this case is a PR act to put the Nobel prize in literature on the map for younger folks, as well as less 'high literature' oriented folks, and brand it as a relevant Prize, one which they should pay attention too. I'm always dubious of such motives: I know that we live in an era where we have to compete with all the low and high quality well advertised products churned out by huge companies spending tons of money on getting their stuff to us. Still, the Nobel is what it is: a high mesaure of excellence, be that excellence in enriching cultural memory and understanding, a trailblaizing experimental style, or a masterly literary achievement. Dylan's - written - work is certainly none of these. Giving the prize to him is especially harsh a year after it was awarded to Svetlana Alexievich.
Alexievich is an excellent writer, has focused on events of the 20th century in much of her work which have altered the lives of countless people - Chernobyl, the Afghan war of Russia, etc. - and does that in a way that she makes our memories and understanding of these events much more sophisticated and complex, hence, much more close to the truth.
However, literature surely also has the role to entertain. Anyone denying this would be a fool and with no understanding either of the history or the role of reaidng, books, printing, and literature as such. So, Dylan it is. I'm sure his work will receive much attention for the next months. His fans will be happy about the news, people who weren't fans might give it a try with a new openness and appreciativeness, and even those who never heard of him or never liked him might recognize something valuable in his work after listening to it again (or for the first time).