Yeah the pathing blew at times. Fortunately that's one of the things they owned up to.

The scenario wait has more to do with the people playing the game. Mythic can't really force people to queue and many people decided to do open RvR and PQs instead of scenarios. Still on some of the more populated servers you could get a queue pretty fast.

As for queues, it's something WoW had as well for quite a while. It's a problem that tends to sort itself out. Players who are guildless or small guilds will typically move themselves to another server rather quickly and eventually it resolves the problem to a great degree (though sometimes server transfers are needed as well).

GCD, this was one of their issues. Mainly there was a very unforgiving overlap of when you could input the next action after the GCD was up. If you hit a button .2 seconds before GCD was up you'd still get ability not ready. What they're doing (and what WoW does) is give you a more generous GCD so if you hit an ability say .3 seconds before the GCD is up it'll 'queue' it and still fire it off when acceptable. Also the fact that the GCD was showing 2 second cooldown instead of 1.4 was an issue.

What's wrong with the crafting system? I found cultivation and alchemy quite fun. Scavenging was likewise entertaining in the sense that I was able to loot killed players. I don't see how the system is any worse any WoW's system (and in many ways I think it's better). Sure the # of trade skills is limited but not having armor/weapon crafting trade skills is actually going to help the game overall I think (issues around balance, twinking, and the effects it has on the economy).