I don't expect much from either side, TBH. Save me chasing this down for myself, would you?
Either
1. The Treasury report contained an optimistic section but the Remain side omitted it from their summary when discussing it (which would mean the report isn't biased, just the way one side quoted from it)
Or
2. The Treasury report never had an optimistic section because Osborne or one of his underlings told them not to find an optimistic side.
Do you know which?
I don't believe the answer to your questions will be in the public domain (yet). It's quite possible that the Treasury report was redacted by Osbourne to fit his arguments. Treasury Chiefs signed off on it, but then, their jobs might well have been at stake if they hadn't. This is why it stinks, and to be fair to the media (BBC and Sky today) they're onto the chicanery