There was an old gal named Ruth Stout who promoted a heavy mulch system of gardening. She use to garden naked, just kicked back her layers of mulch, dropped her seeds then stood back and watched it all grow. There was a great video of her online but I can no longer find it. Anyway, I tried the method, minus the naked part, and found that in this neck of the woods a thick layer of straw mulch was a magnet for voles which ate most everything and slugs. The soil, however, became like a moist, soft chocolate cake after a season of cover.
We now garden on top of hilled rows and make every effort to keep the soil covered when not in use. Something I'm doing this year is placing manures and decomposing leaves between the active rows ( in the paths) and in the spring will till those paths and bring that compost to the top of the growing bed. This is, in part, to only have to move these heavy components essentially once.
I too was fascinated by the Eden method and experimented some with the wood chips. Quantity and availability has been an issue. Bottom line, I know soil health is critical to the success of our market garden. I'm working to build soil that is so fertile you can walk by with a seed in your pocket and it will try to germinate. I'm not quite there yet.