So, in essence, the seal is holding the axle in place? ->(Bearing/seal)Plate The seal gets the total side to side force exerted by turning, torque, road hazards.... This takes a great idea of C-clip elimination and weakens it to the point that a C-clip rear end is stronger and less likely for the axle to move side to side.
Obviously, no one can say there are none made like this BUT I can say that the dozen or so I've taken apart had the bearing trapped solidly. Also, the c-clip elimination kits sold to strengthen c-clip rear ends provide the parts to trap the bearing solidly without a seal in the stack.