The SHELLCMD was more of a potential root exploit, so not a bad thing it was removed, (there are still ways in, they just now require physical access) It would be like any other networked device being able to run at root with no authentication.
I suspect I was part of the reason why that command was dragged to the surface, and may have lead to it being published against, If so, I do apologize Performa01, Not being infosec, waving a flag that says here is a command that will run arbitary code as Root was not my first though. more hunting for bode plot controls before I found the command to just press the buttons, and because there is no online updating, that possibility is nicely closed off.