I would have thought the threat was obvious. With all that hardware in the air operated by, France, US, Turkey, UK, Russia, Syria; precious little coordination, deconfliction or airspace control, no common IFF measures; a couple of nations that now have a grudge issue and a load of very capable surface-to-air systems, it's another shoot down, frag or mid air waiting to happen.
All those lessons we taught on TLT seem to have been forgotten.