Not exactly an unbiased report. The person responsible for hiring and running the team says she did a great job! Maybe if the gender mix had been reversed then it would have worked just as well because she is a great manager? If the take away is supposed to be that you should hire a majority of people as females, well that does not scale. If only 1 in 10 developers are female then building a 70% female team is not possible for everyone to do.
"THE WOMEN SOFTWARE ENGINEERS ON MY TEAM HOLD THEMSELVES TO EXTREMELY HIGH STANDARDS"
That does sound awesome (shouting notwithstanding). I've noticed that this doesn't happen with teams of men.