Well, considering this thread was made in the very early days of SB, most people didn't have flying yet. While that certainly made it a lot better, it's still worth considering gatherers who don't yet have flying unlocked.
There are also several nodes where it's very very easy to aggro monsters as you are flying, mostly in Azim Steppe but also in Peaks. There are also a lot of nodes where mobs can wander close by and you can aggro them landing at the wrong time or just a tad too close.
I think the issue people are having is less that they can die while gathering, and more that in ARR and even HW, you at least stood a minor chance of getting away if something did aggro on you. Now you have no chance at all. I haven't died while gathering since getting flying either, but there's literally no negative repercussions of a change like this.