Earlier quoted context omitted.
The guy's post was science, according to scientists - 5 of them have now spoken up saying that. Maybe there'll be more. With respect to "why not try to solve it", it's a reasonable question. The guy answers that too - he is all for trying to solve it. He even makes suggestions about new ways to do it, like encouraging pair programming. But he feels the current solutions aren't working and are, in fact, causing bigger…
You're right that a number of scientists have come out to say his post was science. I'm saying that they are not the conclusive authority on the posters' intent. He is of course entitled to feel and think whatever he wants, but maybe a little old-fashioned advice would help here: measure twice, cut once. He clearly didn't think through the effects of posting a stern essay to a company-wide board on a subject that is…
With respect to his essay skills and tact - they are just fine. He makes it abundantly clear he doesn't want to offend people and is not describing individuals, but only the statistical preferences of large populations. You are shooting the messenger in another desperate attempt to ignore the message. Could a few words have been tweaked here or there? Sure. Should he have written it? Yes - he alleges that Google is engaged in illegal behaviour. Google, like all large firms, teaches their employees that it's their responsibility to flag illegal and problematic behaviour and writing such a well researched memo in order to do so is more than most companies could expect.