Example of different kinds of interaction with others in real life - one in wide auditoriums, and other in metro during peak hour. CRZ gives "metro" like feeling.
Root of MMO is "multiple players playing same game at same time with specific systems in place to allow them to interact between each other". When you come from hard work day and had to use metro on way in and back, the least you want from game - is the feeling of metro, waitings and queue for quest mobs and resources. Add to this that many people farm not because they enjoy the process, but because they need to level a prof or to make gold/flasks for raid. Making such process even less enjoyable and more frustrating won't make anyone happier and will turn away a lot of people.
To Paloro: well, before CRZ you could do it with friend very fast too (a lot of people made alts in other faction out of boredom). Also, CRZ can add a lot of mess with Halaa's control.
Edit: and about "me" centric. When people play game, they fairly enough expect to have minimum disruption in the process. Queues for quest mobs/farm spots/resource nodes are results of disruption in that process - it's like having to watch 1 minute of TV advertisements for each 10 seconds of actual film.