It's ok and expected for a MMO game of this proportions to have bugs at launch. It's nothing weird or new. Every game has bugs. But for grouping to be this useless, the ability to NOT help out people who are on the same quests or who did the quest already, now that's just bad thinking. And people get mad when someone "steals" an NPC they needed to kill on SWTOR. This is even worse.
From my time in 3 beta tests, I found that TESO is a major waste of time and money for both, the devs and the players. I got bored barely 2 hours after creating a character. I'll just wait for it to go F2P, but seeing just how big of a moneygrab this game is, their F2P model might be worse than TOR's.