Your post has nothing to do with the previous message or point, you're just switching arguments. Most e-commerce businesses cannot scale /downscale every 50% + or - organic search traffic changes.
If your worried about this update then you haven't been doing seo right and If your relying solely on a 3rd party for the existence or profitability of your company then you have bigger issue at hand than just your seo.
>>If your worried about this update then you haven't been doing seo right
I love this statement, heard it right after Panda when the "good SEOs" were bashing the panda hit sites...and then their own sites were destroyed too. As horrible as it may sound, I actually felt good.