I always love a fresh perspective, but I would temper the enthusiasm around a redacted edition of a biblical text from 1919. German higher criticism (and thus all biblical scholarship at the time due to its influence prior to WW1 & WW2) was obsessed with "rescuing" the works of antiquity, especially the Bible, from their scribal traditions. This turned out to be basically a dead end, and not least with the discovery of the dead scrolls in 1947.

That said, Ecclesiastes feels less strange the more time you spend with Hebrew poetry (Job, Psalm, chunks of the Prophets) but does give a lot more attention to the theme of vanity in life.