Think of a 42 oz Shadow or Stock 2 as an apple and a 23 oz G34 as an orange. If you want the juice out of them, you need to squeeze them quite differently.
Also, another theory posits that with a heavier trigger you can get away with gripping the gun with more force without it affecting your trigger control, versus a lighter trigger. So a light Glock having relatively heavy recoil (for the caliber) with a heavy trigger and a hard grip are kind of a logical combination, while a heavy pistol and a light trigger would require a lighter touch even for the support hand.
Even 1911/2011 shooters tend to favor slightly heavier triggers with .40/.357 and .45 versus lighter triggers with 9x19 Minor or 9x19/.38 Major with a comp, assuming the gun weights about the same with each caliber.