The argument seems flawed to me: by "killing the web", they refer to the example of a company adding SEO'd information to their website to lure in traffic from web searches. However, me personally, I don't want to be lured into some web store when I'm looking for some vaguely related information. Luckily, there's tons of information on the web provided not by commercial entities but by volunteers: wikipedia, forum us…
In the short term it will feel liberating; in the long term it will kill the web.