Not so much these days, but back in the day I came across plenty of very explicit, very deliberate gender and racial bias. Talking to my mother, her whole career as a teacher was shaped by it.
The way I see it, there is very clear gender and racial and other minority under-representation in some areas of tech and employment. Some of the reasons for that might be benign, others might not. It makes sense to me to poke at this problem and explore it and push against it's boundaries, obviously in a non-damaging way.
This seems to me to be a positive way to do this. If women going to coding camps typically find themselves in a small minority among a big room full of guys, that isn't necessarily ideal for them. It's not anybody's fault, it's not like anybody has done anything wrong, but it can be an obstacle for those women to overcome. So why not try to minimise that obstacle?