I know that this may sound strange, but I think its true. And there is good evidence to prove it.
Firstly in the patch notes the demoman was cited to not be needing many, or any changes. This leads me to believe that they think the demoman needs nothing changed. But of course he is the most broken and overpowered class -- right next to the pyro. Why would they think think the Claidheamh Mòr is in alright spot, it is obviously under-powered, it is just a useless version of the Half-zatoichi. Also the Stock Sticky launcher, how do they think it is alright when there are shields and importantly the Scottish Resistance, in comparison the stock Stickies are pitiful when compared to the Scottish Resistance. And they don't think the Scottish Handshake needs a change, it literally can't break. That is not even the half (zatoichi) of it.

Secondly the base jumper was not mentioned in the multi-class section even though it is. It was posted under soldier, they didn't do the decency of posting it under his changes, if he HAD any, too. i stole this
Thirdly the patch notes, never even mentioned him, not even a single change. As I have mentioned above his weapons are terribly unbalanced, so for them to even have the audacity to not change anything for the so called "biggest update" in TF2 history it is bamboozling why they wouldn't change his weapons, or him as a class.