If it's legal and the person is just wanting to kill a Turkey I suppose it would be OK
It is a good woodsman who can sneak on a flock in the Fall, but the Spring woods seem a bit easier [to me] to move in without detection.
Old day turkey hunters in the deep south would kill em however they could and off the roost was common.
Personally I've never done it. Been tempted as I had one strutting and Gobblin on a big limb a few years back, but I waited till he hit the ground and called him in a couple steps before it ended.
If your a Turkey Sniper then that's what you are.

I'm a Turkey HUNTER.

And would rather listen to Bluegrass.