On the questionable assumption that Johnson's deal is heading for defeat by a relatively narrow margin, a certain Somerset-based scribe of our mutual acquaintance has suggested again that the SNP should swing the balance and allow the deal to pass in return for Boris Johnson granting a Section 30 order and allowing an independence referendum to take place next year. This is a bogus narrative designed to make it look like the SNP are selling out on independence. As I've pointed out before, the SNP's supposed leverage simply isn't there - if they made Johnson such an offer, he would say "no". He would have no other choice, because his own MPs would desert him otherwise. An arrangement with Nicola Sturgeon wouldn't actually help him to get Brexit through, because he would lose more votes on his own side than he would gain from the SNP. And he knows all of that.
Even in a hypothetical world where Johnson did agree, the SNP would pay a terrible price in the general election that everyone knows is coming and that cannot be delayed for longer than a few months. Remain voters would desert them in droves for facilitating Brexit, and there would be a betrayal myth that might linger for decades. Would that be a price worth paying to actually get Indyref2 on the statute book? There's a debate to be had on that, but one thing's for sure - it would not enhance the chances of a Yes vote when the referendum takes place.
So, no. Whatever doubts I might have about the SNP leadership's current strategy (I think they should be open to a Plan B, for example), one thing we should all be able to agree on is that they are not making any sort of tactical blunder by declining to make a naive offer to Johnson that would undoubtedly be rejected and that would backfire on them anyway.