What Jezza the Red means by 'time limited' is you can prise him out of power when hell freezes over.And Jezza proposes himself as PM.
I doubt BoJo can believe his luck - he's setting himself up for a "people v parliament" GE and Jezza obligingly lines up on the 'parliament' side. I presume Magic Grandpa is getting political advice from Baldrick.
Magic Grandpa offering himself up as PM should really alarm any reasonable politician, even the not so reasonable ones like ardent remainers should be worried. Even if a no deal Brexit doesn't go swimmingly an anti-British, Jew-hating, anti-monarchist, terrorist-loving, dirty communist will send this country back to the dark ages and UK PLC will be far worse off than any badly delivered Brexit could do to the UK.