(I haven't read your link, yet.)
I have a small farm. It's a funny shape - 2 kilometres long and 400 metres wide. My neighbour's farm is the same shape along the 2 km long boundary.
My neighbour is very quiet. He doesn't talk much. If you try ringing him on the phone to ask about something ... well goodluck getting anything useful.
But, when my neighbour is out shifting his sheep, using his dogs, I can often hear him. He yells, in his loudest voice, the most foul language! Swearing and cursing at his dogs for doing the wrong thing, pushing the sheep the wrong way, leaving sheep behind. But all I hear is Beep Beep Beep ...
I think that it helps him to reduce his stress. But it does sound incredibly stressful.
Before I was serious about farming, I visited a farm. I asked the farmer how he got his dogs back into their kennels ... He said that he feeds them in there, so they go in.
I heard him use a lot of ... not swear words, but certainly impolite language telling his dogs that they were doing the wrong thing. I asked the farmer what he said when the dogs did something right ... He said that it hadn't happened yet!
Now, I have a dog on my farm. He respects me and works hard. But my partner can't get the dog to move animals for her, well, not the right direction. Because she hasn't learnt the key words I use to command the dog ... "Get out of it you mangy mongrel!"
(I thought long and hard about that phrase - close enough to swearing, but not offensive if someone hears me yelling. :)