It's claimed in internal documents excluded from the gizmodo story that in an anonymous survey approximately 36% of Googlers largely agreed with the essay. Without knowing the survey methodology it's basically impossible to interpret that result, though. E.g., how was the survey advertised within Google? how many respondents? what were the actual questions? was any effort taken to prevent repeat votes? to ensure that only people who'd actually read the document voted? The only info is a couple of pie charts.

Links to the leaked documents are available via Google.