The point is that Google obfuscates their search result links so that they do not include search keywords any more -- if you are interested in knowing the keywords, you [typically] have to pay. If you are just looking to know that the referrer was Google, then yes you can see that. However, this is not really useful information to most people.

They implement this in two ways: (1) If you go directly to google.com and type in your search, the results page uses a # in the url which keeps all the query parameters out of the referrer. (2) Google has used (not sure if they still do/randomly test whether or not to) JavaScript redirects which overwrite the url when a search result is clicked. I'm sure there are other ways for Google to hide the referrer -- plus Google and various browser extensions can turn parts of this on/off however they choose.

It is still possible to wind up with a referrer from a Google search where you can see the search keywords, if for example the search is done using the browser address/search bar, and the JavaScript overwriting result urls is not active (turned off by NoScript, etc.). However, this is not in Google's best business interest (if they can convince people to pay for the info) so I am counting on them trending towards making this the least likely of possible scenarios.