That's not due to laziness on developer's part, but rather a big in the game that prevents party banter from starting up.
Personally I've had little trouble with this so far, but judging by threads on EA's site and thethere's more than a few players who are. They report near-silent parties trudging around the fantasy world of Thedas stubbornly ignoring each other. That sucks.
Fortunately, Bioware is working on the issue. According to, Bioware's Allan Schumacher is asking players with 50+ hour saves who think they've been affected by the bug to send him their save files. We might just see a patch to fix this down the line.