1. There is a certain way to detach the Pouches and to detach it, you should get used to. Only ESHENA bag users can detach it and someone who hasn't used ESHENA bag can't get Pouches detached. And also pouches won't come off even if you pull them with your maximum force so we are pretty confident about the security.
Stitches on our bags are located a little bit wider than Maxpedition or 5.11 and Magnetic Buckle park on our pouches are wider than attach part of their pouches. So their pouches might mostly fit on our bags but our pouches might not fit on their bags.