If you didn't play WoW before and after the LFD and LFR were placed in service, then you really have no idea what you are talking about.
This isn't a WoW vs SWTOR thing. This is a WoW before LFD and WoW after LFD thing.
When you would do a 5 man, you would go TO the 5 man, walk in with your group of people you met and comunicated with in your Massivly multiplayer game.
Now, all you do is sit in the capital cities and spam /2 while waiting for your queue to pop. There aren't people out in the world. Even low levels are leveling though dungeons, so after level 10 there are not any people really out in the world. This gets a little better in the very late level zones.
TL;DR
LFD/LFR kills immersion and makes the game feel dead.
