Twelly have to agree that although my girls love it, it's mainly about being creative & making stuff (which don't get me wrong is good fun for everyone!) and little to do with thrumping around outdoors etc.
I suspect it depends a lot on the particular leaders - for various reasons lots of adult women aren't keen on thrumping around in the mud etc and while men who don't like it force themselves to if there are boys as this is what boys are supposed to do, there is little of that for girls.
So if you get non outdoorsy leaders + it's girls who are expected to enjoy doing quiet things indoors then it's not surprising that is what you get surely?
And in no way to disparage anyone - I'm not outdoorsy and would far rather sit indoors and make something than go and stand in a field in the rain, type of thing.
This is socialisation >> people - that's people of both sexes >> have different likes and dislikes but female people are expected to be quiet, indoors, and do things that benefit others / are "productive" (baking, knitting etc) while males are expected to like being loud, out of doors, and doing things that they want to do, whether they benefit anyone else / are productive is irrelevant.