No! One F/A-18 and a pilot-turned-terrorist is all it would take. The flight may have been forced into a turn then shot down. Unlikely, but simple as that. Now the Malaysian airline spokespeople are being told to spout BS until the Malaysian government is willing to fess up.
Hmmm..Why not take out a bigger target like a 747 heavy over city, with about 500 on board?
Terrorist like lots of dead...Spectacular stuff.
Over ground would have caused considerable collateral ground damage too.