People are getting a little hysterical about a SAM.
The Russians have quite reasonably brought in a little muscle to protect their aircraft, or at least give them the ability to bite back.
It is in no way a game changer for our aircraft flying around.
Why?
Because it is so vulnerable.
If it was used against NATO aircraft it would be destroyed.
As has been mentioned before, it is within range or Turkish/British artillery. It has no survivability.
It is a statement of will, not an actual enduring capability.