"It will just last a few months" as an argument is showing such an obvious ignorance about todays gaming market and competitors, its baffling. Every expansion release for any MMO ever has been a test. There have been expansions that vastly grew their games, and expansions that killed them (looking at you, SWG) in no time flat.

If there are massive DPS queues for a few months, meaning during the time when returners and new players check out the game, just to find they will be waiting 30-60 minutes in order to progress through dungeons they NEED to do, this will hurt, A LOT.

And it will be blamed on the game, reviews everywhere will say the game has massive wait times (even though technically its just for DPS classes, who are, DRK aside, pretty much the coolest designs so far), people will flame, whine, demand changes, quit, and be generally toxic because they will lose hours of their gameplay time to this.

Within days, with 45 min wait queues, there will be posts demanding you take out instanced zones, pressure to reduce the number of needed healers/tanks in 8-mans or increase DPS slots in 4-mans, and this will NOT even out in the long run, because it NEVER has been the case in the historiy of MMOs. Bad launches stay with you forever, as ESPECIALLY FFXIV should show.