Not sure I understand you...what other post about dialing in barrels?And what are you referring to "They don't dial the barrels in" remark from another post?
And from the article you linked:
" An established fact is that at a given PF a heavier bullet going relatively slowly will produce less recoil (and muzzle rise) than a light bullet going faster.
Well yes, but not said is that a lighter bullet "going relatively slowly" will have even less actual recoil than a heavy bullet "going relatively slowly "
Again Newtonian physics but varying the speed isn't the point. If ALL else is held equal and only payload is varied, then heavier will produce more reaction force.
Have a great day, thanks for the link.