Sometimes I think the ideas of the creators of movies and TV series like this is to try to see what’s the most absurd and out of place thing they can push without anyone not in IT noticing. Moreover oftentimes the primary thing is entertainment, not factual accuracy.
Apparently, it is a thing on at least one show. NCIS once showed two people using the same keyboard at the same time.
to counterhack faster, obviously. and then someone came in and just pulled the plug out of the monitor, which obviously stopped the hacker.
There is an answer to the question that you are not asking, and it’s the scene from NCIS where TWO people are furiously typing on ONE keyboard so that they can “hack faster”
The primary thing is entertainment. They have to make something that is entertaining to watch. For example even explosions are exaggerated. In movies they contain much more fire than they usually contain.