The point is - Google is profiting BIG TIME from their "shortsighted thinking." Even one day of bad (possibly manipulated) results may equal millions of additional $$$ for them. And such "shortsighted thinking" comes into play more and more often these days. Google will not lose their visitor base if they provide bad results (which cause their visitors to click on Adwords ads more often) 5 random days a month, will they? The bad results are mathematically and socially calculated into their search engine results to maximize their profits.
The "ever-flux" story is a smart excuse of their poor results - to pool the wool over the webmasters and Google users' eyes. It's like they said: "Don't worry about bad results you may experience a few days a month; be assured we're working on it and always trying to improve our algorithms. In the meantime, why don't you click on Adwords ads? They are ALWAYS on target."
[edited by: tedster at 12:28 am (utc) on Oct. 21, 2007]
[edit reason] moved from another location [/edit]