! Oh the microphone knobtighteners!!!
Don't get me started!

The hand movements which annoy me are the ones which look as though they were learned in primary school.
It is in the same order as shouting!! or TYPING uppercase.
"LOOK out on the OCEAN for my LOVE..."

But ... sometimes I do find myself starting to use some hand gestures. It's a good memory aid.
Then its hands back in pockets time and I try to imagine the actions.

I'm not sure Norma Waterson's gestures have ever distracted me. Having just watched her on youtube they seem to be a good expression of emotion and emphasis.

On the other hand, here is Sam Lee.
Yes there is a choir behind him but that has its own conductor.
https://youtu.be/HdCNdBFd3Fc?t=93s

In Sacred  Harp\Shapenote singing they use their hands a lot.
https://youtu.be/98fVjc4MfXQ?t=64s