My guess is these were underperforming problem employees that they wanted to drop. This provided an easy out to skip a PIP and severance. A company the size of wells fargo there are going to be way more people than 14 using a jiggler. If it were a blanket 1-strike, it would be a lot more folks gone.
Tossing a dozen employees they were anyways with a big headline about it being because of not constantly working is a net profit from how many other employees will now be scared into working constantly.
I am an AV tech and we use a mouse jiggler script to prevent computers from going into an inactive state for presentations during events at my company. The script doesn't need to be installed, you just open the file by double clicking.
I use an rpi2040 with circuitpython and usbhid. Plug it into anything and it shows up as a mouse and moves the mouse in a tiny circle every few minutes. You can get one for $6.
Wild that Wells Fargo would issue computers that would allow people to install anything on them.
That's a very common thing. I don't know a single company or organization that prevents executables from running. You don't have to install programs to use them, it's just that most software ships installers