-
I think that the risk of being written in to the history books as him/her-wot-dunnit is something everyone is trying to avoid.
Grayling seems impervious to his fuckups but they are small fry compared to the potential fallout from a 'grabbed, parliament bypassed' no-deal, which would be firmly levelled at the guy in the wheelhouse at the time.
But yeah they'd take a no-deal if parliament was seen to endorse or sleepwalk in to it.
He could however think that even a 10% risk of total fucking disaster is not worth taking firmly on the chin (because it would be him alone who takes it, if they arrange something devious to facilitate no-deal) - if it means effigies of him and his immediates will be burned on bonfires for decades to come.
If however parliament sleep walks in to tacitly agreeing to no-deal, then yah, they'll take it, because they won't take the rap for disaster alone.