Was just looking at that twat :P .. The text to us looks correct so the hand appears to be doing mirror writing
Yes - Stuxnet caused them to spin up too fast and break.
'''they programmed a Siemens PLC to inflate a balloon, then infected the PC it was controlled by with Stuxnet. The results were dramatic: despite only being programmed to inflate the balloon for five seconds, the controller kept pumping air into until it burst.
The destruction of the Iranian uranium centrifuges, which followed the same logic—they were spun too quickly and destroyed themselves—was perhaps less visually exciting, but was ultimately just as dramatic.'''
https://www.csoonline.com/article/3218104/malware/what-is-stuxnet-who-created-it-and-how-does-it-work.html