Hi. i have attached a link to an article on www.autosport.com http://www.autosport.com/news/report.php/id/115997
that relates to the crackdown on radio communications between the driver and team and the FIA's statement that the driver must drive their car alone and unaided. Now as Joe average motor sport viewer, I feel that if a team has "fixed" the car from the pits or from their home base while the driver is on track then that is clearly a false result.
Now I could be wrong her, but my reading of what Toto Wolff and Christian Horner are saying is that their inability to discuss technical issues is a safety issue.

"It is also a concern for safety. How do you not want to communicate with a driver whose steering wheel doesn't show anything anymore?"

This appears to me to be an inconvenience, rather than a safety issue.