Porting on a 2" snubby? Yes. Yes! YES!
Have you nay-sayers actually ever fired a ported revolver? If you had, you would know how well it works.
Have you ever even fired a 2" Airweight with +P ammo? If you had, you would know how much they NEED porting.
If you haven't, maybe you should try it.
Ported guns make a lot of noise. So do all guns. Ported guns have muzzle flash. So do all guns. In fact, revolvers have "cylinder flash" and blast that comes out both sides of that funny round thing in the middle. I don't hear anyone complaining about THAT.
My experience with an UN-ported Airweight was that a 30 round qualification course was enough to leave my hand swollen and sore for a week. Porting would have reduced that damage and perhaps made training fun.
As for the dangers of all the flash ... I know, because I've actually seen this, that with an UN-ported barrel, the flash appears at the muzzle, right "behind" the front site. With a PORTED barrel, some of that flash is redirected and appears 1-2" ABOVE the front site. It is less distracting up there out of my direct line of sight. I also know that different loads have different amounts of flash. Many premium brands of LE or self defense ammo use powders that have almost no flash (see fall 2007 "American Handgunner" for photos).
So, porting reduces recoil, making it easier to train; reduces muzzle flash, making follow-up shots more accurate; and it does not increase muzzle blast, since we already have plenty of that coming out of the cylinder gap. My 2" Airweight 637 will be making a trip to Magaport very soon. Maybe yours should too.