I mean it’s a great idea honestly. But you know….Merica. 
I recently installed a ton of ceiling fans in my house which came with these and the manual noted that it was only required in Canada, so I just snipped it off
My shrouds are way too small to fit them which sucks. 2 of the smaller bedrooms I installed fans that would allow them to fit taped to the ceiling. For my family room fan I got a plastic box that I’m going to install in the attic. I got plastic because I figured having a metal enclosure would interfere with the communication to the switch. But of course to have it done right I have to secure this box, clamp the romex going in, and have a flex conduit going from it to the ceiling fan. It’s so much more difficult, but it’ll be done right. Had so much going on, but I intend upon getting up in the attic soon to get it in. Just been so cold and I wanted to do it when it wasn’t freezing. The module is like 5 inches, so I had to get a 6x6 box, but it’s in the attic so who cares. lol.