as always with these updates, the results are extremely inconsistent and don't really make a pattern. overall, my EMDs are unaffected, meanwhile a fitness-oriented site that has about 4000 words of very strong content went from #3 for its term to nowhere. another site with longer, better-written articles completely disappeared out of the top 100.
you can split hairs about which direction to move in, what to do, what not to do, but i think the big reminder is to diversify.. solely making EMD sites or solely making "authority" sites can get you hosed. it's like diversifying your portfolio in the stock market. if your EMDs tank, you've spread the risk through a gradient of site thickness, so the hit will be a minor setback instead of something that can absolutely trash your bottom line
you can split hairs about which direction to move in, what to do, what not to do, but i think the big reminder is to diversify.. solely making EMD sites or solely making "authority" sites can get you hosed. it's like diversifying your portfolio in the stock market. if your EMDs tank, you've spread the risk through a gradient of site thickness, so the hit will be a minor setback instead of something that can absolutely trash your bottom line