One of these e-tards calls this a proper two-hand grip:
Note the prone thumb forward of the cylinder? Idgit.
Also, note the young, wimpy, boney wrists and hands (with baby soft skin) in the picture. This is NOT what an experienced magnum revolver shooter's hands look like.
Next, we'll get some gawd-awful heavy recoil shelf attached to the crane of the revolver so that Darwin-award selectmen like these can have a two-handed forward grip on their revolvers with rifle-like power that they can't shoot for a d@mn.