Interesting question. Conjecture that the idea is possible.
Putin sites the equipment, and simply indicates that anything in the sky should be shot down. Anything.
On the other hand, Malaysia has a long relationship with the Russians / Soviets. Their air force, for instance, is composed of both US jets (they have 11 F18s), and Russian jets. They’ve been on this dual track for some time.
I haven’t delved into the historical nature of that relationship - but believe it’s simply opportunistic playing of one side against the other - but potentially the movement of Malaysia towards stricter Sharia culture has opportuned an expression of kinship from, say, Chechen muslims.
So there might be some kind of score to settle. And Putin is working himself into a mood to settle scores. And after all, Malaysia isn’t a massive political power, but is an adequate proxy. We can all see easily where flights are around the globe these days.
I can’t see missile operators being utterly unaware of air traffic. There are so many flights a day.
Russians are brilliant at gaming systems. So the Ukraine situation is a beautifully crafted example of keeping the west out of its business whilst it takes chunks of the Ukraine.
As people have said, this was no shoulder launched missile.
I just pray, and hope, that the passengers and crew didn’t suffer. Horribly, I believe they did - these missiles likely lock onto infrared signatures - engine exhaust. Being out on the wing of a 777, basically it probably blew the wing off, or damaged it extensively, but rendered the aircraft incapable of controlled flight.
Like I say, the Russians have form in this game.