Nah. I like the quick on off and thinking somewhat outside the box, but that creates other issues. It will be loud comparatively to other cans as it is not creating a tight seal with the barrel. You are limited at the guns you can attach it to. Take a hard hit, I imagine it's not all that hard to knock it out of alignment.
Quick on/off is cool, but it doesn't take that long to put a traditional can on a gun. I don't really see any real application for saving a couple seconds either. It's not like you are gonna start shooting, then decide you need a can, and have to hastily get one on there, or vise versa.
Solving a problem or meeting a need that didn't exist.