I've been using vim seriously for years, and I've had escape on capslock for many of them. However, not all users know how to do that or haven't thought of the amazing benefits that can be obtained. There's people who are only picking up vim today. Give them a chance.
To those who haven't: Give it a go. Put Escape on Caps lock. If you've got Control there and you're running Linux or Windows with a standard PC keyboard, you probably actually want to swap Control and Alt. If you haven't, you probably want to swap Control and Alt anyway. (This will give you bindings similar to the Mac's Command key. The thumb is a much stronger finger and far more suited to these combinations than the weak pinky.)
To those who haven't: Give it a go. Put Escape on Caps lock. If you've got Control there and you're running Linux or Windows with a standard PC keyboard, you probably actually want to swap Control and Alt. If you haven't, you probably want to swap Control and Alt anyway. (This will give you bindings similar to the Mac's Command key. The thumb is a much stronger finger and far more suited to these combinations than the weak pinky.)