For the record you did a strawman initially (though it’s also my fault since I could be clearer). When I said should know each other “outside the game” I didn’t mean literal physical contact only but also going on VoIP and talking and generally being a guild.
I meant pugs are bad and playing BGs with randoms you don’t already know outside the current game is a “pug” in WoW terminology (or worse since it’s just random (an “LFG”)).