It's probably got something to do with the Boomsbury group. The first Impressionist exhibition in london was organised by Roger Fry in 1910 and Virginia Woolf said, in her diary, that Literature changed in the spring of 1910 (paraphrase, I may have got the season wrong). Somebody trying to understand what Virginia meant made the connection between the two. They were probably right because Roger, Virgina and her sister Venessa Bell, were all very close.