One would wonder what the long term story arc for this is
I guess it’s an inevitable shifting of tectonic plates way beneath the Am. Joe’s demise means the end of ‘The Grundys and Their Oppressors’. The Grundy dynasty can’t really be used primarily for comedy now - Eddie and Clarrie are moving into sober, respectable retirement, Ed n Emma have always been too tragic and Hardy-esque* to be funny, and Will is just ... Will.
So they need a new multi-generational family, and the Horrobins are already in situ and totally integrated. What do we know about Tracey’s offspring?
*Or maybe Eliot-esque?