A piper cub is a very light airplane, winds effect it a lot more than they would effect any plane we have in AH (with an exception to WWI planes).
Now I am all for more realism, but if we were to have all thous things we would also have a lot more warping. Another thing to consider; do we really want to have weather that would prevent flying in a flying game?
I can't find the exact post but HiTech said a while ago that he does not want to make the game more challenging for everyone. The wind will be a problem for everyone not just one side.
I am not saying I don't want to have all thous things you said (I do), but I just don't think it will be possible to make them realistic and have the game work good for everyone.