They didn't qualify because they sucked not because their group wasn't easy, tbh.
Heck, Russia may not even make it out of this group. That doesn't men this wasn't one of, if not the, easiest groups of the WC.
That would be way too obvious son.
Besides, I'm not saying the draw is completely digited, just the balls that make the biggest impact (for example: Spain and England).
The World Cup is one of the biggest bussinesses in the World son, you are crazy if you don't think people in power wouldn't make sure that everything goes according to plan, tbh. I'm talking about little things like giving the home team a group in which they can at least compete, not some shady stuff with referees and things like that.