This is a recurrent complaint with most Events when everyone and their mother swarms a single zone and runs all the dailies, but I think it bears repeating.
Devs, designing your dailies so that players have to compete with each other for limited quest resources is a pain. Anytime that players need to get item(s), but only one player can obtain it and everyone else has to go find their own or wait for a respawn is poor game design that pits players against each other or forces players to sit and wait around.
There are lots of dailies like this and my own list here isnt exhaustive of the ones in Wrothgar.
Storytime:
Today I got "Breakfast of the Bizarre" as my Wrothgar Delve Daily, with the requirement to gather 13 harpy eggs. That resulted in me and five other players hovering around the nests in two rooms and a hallway, snatching up whatever eggs we could before the others got to them. At least the respawn was quick, but it wasnt good gameplay and made other players into worse "enemies" than the NPCs. There were several times where, rather than helping a player fight, I thought "Oh, good, they're distracted so I can get this other egg first!"
Not all delve dailies are that quick to respawn. The other day I had "Getting a Bellyful" and after running through half the Delve with no durzog feed spawning or other players beating me to it, I decided my best strategy was to camp a spot where I knew two pieces spawned. So I sat there for about 5 minutes while I waited out the respawn for 6 pieces of durzog feed to spawn so I could finish the quest. This is exceptionally thrilling gameplay here. Also, my apologies to the six players who ran by me while I was camping those two spawn points - I hope you got your durzog feed eventually.
The best daily I've seen yet is The Skin Trade! It requires six werewolf hides, but in a flash of design brilliance, the Devs made it so that you can acquire the skins from either them appearing on the ground OR from killing werewolf mobs. This makes it very easy to gain what you need as you complete the delve normally and makes it a much more cooperative experience with other players since they can help you get the skins you need by fighting together with you instead of directly competing for all of the same materials.
Every time I do one of the other delve dailies, I wish there another way to get the items like there is for the Skin Trade. I'd gladly kill extra NPCs or mobs to get the items I need rather than race other players to whichever egg we saw first. Its nice to actually fight mobs with other players and know that we are both getting the items we need.
Goal: I'm not just here to complain, believe it or not.

Devs, when you design future dailies, please learn from the mistakes of Wrothgar (and Clockwork City, and the Murkmire Prologue, etc.)
Please design dailies that encourage and reward player cooperation.
Please don't design dailies that force players into competition with each other to get quest items.
Thank you for your consideration.
(Players, what are the dailies you think are well-designed? Which ones do you think are poorly designed?")