How would ingame LFG even work on a console game ?
Matchmaking. Boom. You are looking for a group and you get a group.
Want to start a Patrol Mission with a Fireteam to tackle the "Taken War" missions? Just choose the matchmaking option when you select the patrol mission, optionally activating a checkbox telling the game to only look for people using voice chat. 30 seconds of waiting and there you go, you have a full 3-man-fireteam with which you can start doing whatever you want.
Also, in game messaging system. Allow me to send other people i meet messages from inside the game, so that i can convey what I want to do and what Im looking for without having to first invite him to my fireteam and/or prance around in the Xbox menus to send a message.
2 simply anwers to a problem that really has absolutely no need or right to exist in a game which prides itself on it's social interactivity. Really. Bungie does that all the time in their promo videos, even though Destiny might be the most unsocial multiplayer game I have ever seen.
This "You can do that from your PC" excuse is so, so, soooo lame. You could make that excuse for almost every feature in the game.
"Oh, the weapons don't show you their stats? Well, you can just look them up on some checklist on the internet, it takes maybe a minute..."
"Oh, there is no matchmaking for the Crucible? Well, it really only takes a minute to find some people on Gaf..."
"Oh, the story isn't in the game? Well, there are those car-"wait.
Even the freaking Clan-feature is actually missing from the game itself. What in the world? I first entered the Clan i wanted to enter on the mobile app but turned out I STILL had to go to bungie.net and explicitly tell the system that I want to use this clan (which apparently wasn't a clan but a group?) as my clan. Wat. Why. Why isn't that in the game? Why don't you just put the game out on PC if you always have to have a PC running to do anything MP-related in Destiny?