I see from the photograph, which shows details of the pedals much better than by eyeball, that the whole braking torque is not taken by the tube (and weld(s) between the pedal and the m/c actuation lever. If you look at the photo, you will see that the clevis pin through the actuation lever and m/c fork, also extends into the brake pedal, thus sharing the braking load with the torque tube.
Wilson from your photo we can see the clutch pedal does have the clevis pin going through actuation lever & pedal. On the brake pedal the clevis pin looks to only go through the actuation lever. There is a split pin on the left of the clevis. Thus the whole brake load goes through the actuation lever & torque tube
