I have just looked the prize up, never having heard of it before. He shares the prize with Noam Chomsky, who, to quote Wikipedia is an American linguist, philosopher, cognitive scientist, historian, social critic, and political activist. Sometimes described as "the father of modern linguistics," Chomsky is also a major figure in analytic philosophy and one of the founders of the field of cognitive science. He is the author of over 100 books on topics such as linguistics, war, politics, and mass media. Ideologically, he aligns with anarcho-syndicalism and libertarian socialism. He holds a joint appointment as Institute Professor Emeritus at the Massachusetts Institute of Technology (MIT) and laureate professor at the University of Arizona.
He has won more awards than you could throw a stick at and is a person of far greater life achievement than Jeremy Corbyn, Leader of Her Majesties Opposition in the British Parliament.
None of the papers reported much about him winning the award either, nor the third winners All Okinawa Council Against Henoko New Base
Corbyn cannot hold a candle to Chomsky, so lets keep it all in perspective.