No such problem with my bench mounted TRA001. Much too large a machine to use freehand for aging me. Use 1617s for freehend when a Colt isn't quite enough. Vibration should not be occurring in a router, it is nearly always a sign that something is wrong, as Stick said, with the bit, the bearings or some other portion of the armature.
I doubt it's a real problem. Some people's egos function on trying to prove they've always made the best choice. It's fanboy syndrome.
The Milwaukee and Triton are in the same class of heavy beast routers. The Tritons are being used in professional shops around the world taking a heavier daily beating than any home hobbyist would throw at them.