edit - though the theory in the OP seems consistent enough in itself (like BW's theories lol), it doesn't seem to really bear out reality as I've experienced it. Most EJ's I've known have liked being around people but generally don't tend to invite them back home very often - they go to work, go to school, college, church, bars - whatever - and get their people fix but seem to treat their home as a sort of private space. My guess is that it could be the J thing meaning that because they like their routinese and habits and things being 'a certain way', and because they know they can't realistically force these on the entire world or get the whole world to accommodate these preferences, that's why they like to keep their homes as a sort of space where they CAN indulge all these things, and prefer to keep people away from them as much as reasonable and polite, cos then they'd have to start 'flexing' at home, something that might be difficult or stressful. Perhaps.
Meanwhile EP's I think are the most extraverted, being the types I've seen exhibit the most hyperactive type behaviour, which I reckon results from the simple fact that we're so extremely plugged in and engaged and energized by the external world that for as long as we can keep any of our senses conscious, we're being stimulated and loving it. EP's are the people I know with the most sort of 'open house' type lives, where not only do they go out in search of stimulation but happily invite it home too, and spend very little time actually alone because they can never turn away stimulation. Maybe ExFP's more so with the human company, and ExTP's more so with just 'stuff' like say, bringing work home.