Sorry, but you're talking shit.
I don't know your age, but if you were old enough to be engaged in politics in the 1990s, and indeed before that during Thatcher's tenure, you will remember innumerate assertions that devolution would not happen.
Do you deny that this is the case?
As I've already pointed out, unless, by some chance, this has been archived in newspapers or Hansard, it's not easy to link to. However, within a 2-second google, I was able to reference Forsyth discussing the fact that, in his opinion, Scots were fed up of being told "you can't have that" (given that he was Scottish Secretary, I would argue his knowledge of what the government line was might just be better than yours or mine).
Now let's get to the nub of this: are you asking because you actually care, or are you asking because you don't like the fact that I've pointed out that unionist predictions have so far gone awry?
The polls are only moving in one direction, and your keenness to grub around trying to pick holes in a minor point only serves to make you appear palpably worried that the argument is being lost.