This feels like a very odd comparison/metric. It doesn't really matter how many lumens/watts it has, I think a better metric is "How much does it take to 'comfortably' light a single room for 1 hour". Surely the amount of wood that would take is not the amount needed from chopping for 10 hours a day/six days straight. Even more than that, I am really suspicious of these numbers. 60 hours worth of wood chopping would give me a giant inferno bonfire that would last much more than an hour, so how was this comparison done?
The fact that modern technology is so relatively cheap means that we can afford to waste it or use it to unnecessary extremes, but that doesn't mean we should really use that as the base measure of comparison. I of course understand the overall point the article is trying to make, but the attempt at quantifying the numbers feels like comparing apples to oranges.