This is true. But still it has enough torque. So don't be worry about that.
In my Durga there is 35A 9t "3in1" combo. I think it was reasonable bying. Some comments: It's almoust water resistant. After some submarining
, only ballbearings died. Inside the motor there is one small plastic distance bushing, I do not now why but it broke. I replaced them with ordinary shims. After some modifications, it was possible to use even 6t motor. Vent was out of balance.