Padfoot
The Persecuted One
The ball was kicked back to the defenders..... not a back pass..... the kicker meant it to reach the defenders..... not a back pass....... at this point the referee must realise the ball was meant for the defenders..... not a back pass...... it followed through to the keeper (bearing in mind the referee had made his mind up its a pass to the defenders) the keeper picks the ball up..... not a back pass... Definately one of those you have to be there to see if there was intent.
Yes, which the OP was, and his initial thoughts were that the GK should not pick it up.....i.e. BACKPASS!
So everything was indicating to them that the ball was played deliberately back to the GK......and nothing that has been posted since has suggested it was anything other than that, apart from the OP having some self doubt over their initial decision.
My point is that not only is your first instinct rarely wrong when it comes to these things, but that once you have communicated that decision, you stand by it.