Whole class teaching is supposed to cater to a range of different aptitudes or interests though isn't it? I would be very worried to come across a teacher who hadn't been taught different approaches, ad this strange idea that there are teachers who haven't come across boys before unless they have brothers or sons.
I think it is also very out of date. My mum has many of the views that are cited in this article (no Barbies, no war etc) but she is in her 70's. Although actually she is very anti all things "girly" in girls, rather than boyishness in boys. Given the early retirement rate of teachers, and certainly looking at the demographics of the teachers at my kids English school most of them are in their 30's and 40's, and probably in the wave that looked again at those slightly strident feminist views - I certainly haven't come across anything like that at a primary school level. I do think she is forgetting that her "sisterhood" is now thirty years ago, and views have evolved. I see very little signs that men are being emasculated or that women (or apparently non masculine gay men) have taken over.
Personally I found the highly competitive nature of sports put me off for life, and I am sure the boys that weren't gifted didn't enjoy it much, but I know no schools that ban ball sports, and the relay type approaches seem to work very well at encouraging those who are good without completely penalising those who are useless.
Otherwise I agree on the risk taking stuff, but for children, not specifically boys.