LFD is a system that just responds to the content of that time. Wotlk is orientated around dungeon spamming/badge collecting/tabard-rep farming, although LFD was released in 3.3.0, it being released at launch alongside 3.3.5 would be heavily beneficial. It speeds up game-play, there’s dual spec and the ability to queue as multiple roles, so you’re in and out of dungeons quite quickly, while bringing life to the 1-70 dungeons, and taking away business from the dungeon booster community that infests chat.
Being “anti-social” isn’t the right definition. You’re trying to change who people are nowadays. It just how the times are, it’s 2022 and everyone knows everything about TBC/Wotlk. Communication is no longer necessary, people go in dungeons knowing everything about it. TBC has no LFD and there’s no communication in any dungeon. I’ve even done no-voice chat Kara runs when barely a single word has been exchanged outside of raid leader orders.
Formerly in 2007, communication was required since the majority did not know what to do, what to expect, how to coordinate… therefore, it demanded that people speak to each other. Replicating this would literally require a time-machine. It has nothing to do with LFD.