Yep. My general thoughts exactly, but I'm no professional instructor and what I've told friends/acquaintances sorta flies in the face of the traditional maxim that the handgun must always be aligned with the forearm. So I've just gone by experience.
Seems to me the inline-with-forearm kinda went by the wayside once high-speed sport shooting taught us that the straight-ahead two-handed isosceles stance, with the body pivoting at the hips, was the best way to get fast hits accurately. If you're in a full isosceles stance, the muzzle of the gun can never align with the forearm. In an isosceles, the muzzle is perpendicular to the shoulders and in line with the center of the chest. You can't do that without bending your strong-side wrist...unless you're pulling the trigger with the base of the index finger.
I've taught a number of people with small hands to shoot--well, in truth, introduced them to handgun shooting, not "taught" them anything. And my take has always been, since we usually aren't talking about S&W 500s hunting revolvers or ultra-compact 10mm jackhammers here, that trigger manipulation always outranks recoil control. Varies of course between long-stroke double-action guns, fairly mushy striker-fired (like Glocks; luv em', but the basic factory trigger isn't anything to write home about), and the trigger king, the 1911, but I tell folks to adjust their position on the grip to match the best trigger-finger placement, and to not worry about the in-line with forearm thing. We always prefer to shoot two-handed, after all.
So for me the trick is consistent finger placement that allows first trigger contact to shot break to follow-through with the least possible lateral pressure on the trigger. A straight-back push. It's also a good way to teach follow-through and trigger reset. But if someone's grip is a few degrees off alignment with the forearm, but the trigger press is as stable as possible, I consider that a proper grip for that individual on that particular gun. Also found that a laser, if mounted, or a laser bore-sighter, was a good way to see visually the very slight muzzle movements when dry-firing...after they get comfortable with a standard sight picture and after the discussion about natural sight wobble. Seeing how sensitive the point-of-impact is to just heartbeat and breathing can freak-out new shooters.