Just about the only places where you'll find SCSI floppies are in Unix workstations from the 90s. And even then most of those used a shugart bus..
I agree with the first sentence, as I have one! It goes to an SGI Indy pizza-box workstation, and it is actually a floptical. It can use either floppies or small optical disks. I have not tried it on an Amiga yet, but with the right Mountlist, I think it would work.