Thank you for your Opinion .

I offer actual background , hands on..
I built my touring frame from relatively thick wall 4130 tubing and the fork blades and rear stays as a result dont torque at all,
letting the Cantilever posts splay from the force of the brakes pushing against the rim

And I was using the very Powerful Scott-Petrsen Self Energizing cantilever, which by design takes the rotating rim force to tighten the pads more.

The also Very Forceful Magura Hydro stop HS-33 hydraulic rim brakes Include a booster arch to resist post splaying on any bike ..

These are both 45 pound+ loaded Touring Bikes..

Even in Touring bikes Mass market consumers The 1st question is "what does it Weigh"? reply in grams, Kg or Pounds is a choice of units of Measure .