Yes, thanks to Sharron and FPFW I've just seen this on Twitter. So angry. My teens row. The training is hard and physical size a big factor. I've spent some time responding to the consultation as in the link in OP.
One thing I don't understand is the child policy. As far as I know, children can't start rowing until 13yo. Most will start puberty before or soon after that. So saying boys can row with girls until puberty doesn't make much sense. Unless they are effectively encouraging puberty blocking drugs??
And there is no policy for 'trans' from puberty to 16yo.
And the changing room issue is very important for girls.
Rowing does have a bit of an image problem in that it is regarded as very white and middle class and public school. This policy will not exactly encourage any more girls to take up the sport so will become more male too.