If you have a equipment to down planes, it's also your duty to have the proper radar equipment to reliably see what's up there, something that those Rebels did not have. They just stole equipment out of their league, did not know how to handle it and killed 300 innocent travelers.
This is right. It has been pointed out that both the Ukrainian government and the rebels now have the capability to do this, the Ukrainian government has had it for a long time, without incident. Because under a government it is operated by soldiers who follow procedures and have access to the data about known civilian flights.
It gets a bit worse than that I believe, officially to this date the blame is still on Iran for flying an airliner according to it's flight plan and in the commercial traffic corridor.
They shot down a A300 thinking it was an F14, and they were in a heightened level of alert because they (the USS Vincennes) were in Iranian waters, chasing a small naval boat that they claimed shot at their helicopter.
As an aside, the IR655 tragedy was one of the first were data was available to separate fact from fiction.
Indeed. Heck, even someone with FlightRadar24 (an app the price of a cup of coffee) could probably deduct what plane that was. Let alone if you have advanced equipment.
As you say, they just got their hands on equipment and had little clue how to handle it. They are also fully responsible for what happened.
If you have a equipment to down planes, it's also your duty to have the proper radar equipment to reliably see what's up there, something that those Rebels did not have. They just stole equipment out of their league, did not know how to handle it and killed 300 innocent travelers.