First off, if pedaling your bike produces significant vibrations that are sufficient to make your bike uncomfortable to ride, clean or replace your bottom bracket bearings, because there must be gravel or something inside. The pedals on a properly-maintained bicycle turn with no such vibration -- and even if they didn't, are isolated from the frame by grease and bearings. Do you use special, audiophile grease on your bikes to assure that all the vibrations are faithfully reproduced by your bearings?
Second, those lateral and torsional forces still do not matter to the rider's comfort -- so this is not "an important factor" in any way, shape, or form.
Some things belong in boxes. Other things belong in landfills, such as the long-since disproven idea that material selection affects the ride quality of a rigid double-triangle bicycle frame.
You might not like that fact, much like audiophiles famously cannot come to grips with the fact that fancy speaker wires do not have any audible effect, but science does not care what you like.
Thank you for confirming that you don’t understand much about the operation of bicycles in the real world.
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