In the course of centuries of ME conflict the bonbing wouldn't rate a blip in history.  It was however a nice publicity stunt for Trump and handoff to Putin and Assad to continue their own Bromance at a very low cost.     

Russia didn't twitch to retaliate and lost no Rusian lives.  It feels pre-arranged to me, but I have zero proof- it's a guess.  Trump gets a shiny meaningless victory medal and Russia keeps access to Syrian oil.  Very tidy.