When I run my big boys, the Hitachi or the Porter Cable, it’s always a two handed job, but the D handle makes it an easy task to do single handed routing up the side of a board, or the dado jig.
I’ve been running routers, as both a hobbyist and a pro, for forty years and have never had one get away. Of course, my back trouble accounts for much of that – there’s a yellow streak up it about a foot wide when it comes to my woodworking equipment (it took me a week to get brave enough to turn on my first cabinet saw thirty years ago), so I usually have a death grip on whatever I running.