More nuanced than that - Gove was always, of the brexiteers, the one most keen on a deal. His tweeting/briefing post-gangfuck has been the most conciliatory: he's positioning himself not just as (even?) as the brexiteers brexiteer, but as the 'yes, if we really have to's brexiteer.
if he was going for the foaming loon vote he'd be honking off, and certainly not talking about extension periods.
He's certainly positioning himself for when the Great Leader wanders into glorious retirement though, no argument about that...