Why is it different ? It's exactly the same to me.
A convenient magical runes that allow you to go where you want and when you want even if there are no pathes (or if you haven't found one yet).
If they can teleport through the Netherese waypoint to the forge, why couldn't they to the surface or anywhere else ?
Don't get me wrong, I agree that we probably shouldn't be able to teleport so easily to the surface when we're in the underdark. But in my opinion it doesn't make more sense that we teleport to cross walls / lava / obstacles.
So the way I understand it is that you have to actually walk through one portal to come out of another portal. Maybe I'm wrong, but that's the way I think it works.
If you're in the underdark after jumping down a hole, and you don't have another portal in front of you yet (meaning you haven't found an underdark waypoint yet), you can still portal back up to the surface via fast travel. That shouldn't technically be possible if you don't have a way to get to a waypoint to walk through it to come out at another waypoint.
That's why I think it's a mistake.
Just to be sure I understand you well and to think a bit more about it (it gives me an idea of suggestion because you had a good point imo).
According to you, fast travelling mean that your characters have "walked" to the closest waypoint to teleport to another one ?
But what would it mean in my exemple ?
Lae'zel has found a way to go to the forge waypoint but other's haven't.
Does that mean that they found a way I haven't ? (I trust you and Rag' but was really sure they weren't any other, I really search for 30 minutes)
Or that they took the boat back to the beach waypoint to reach the forge one ?
In your exemple, what would be the prerequisite to be able to teleport from the underdark to the surface when you jumped into the matriarch's lair hole ?
To get out by the swamp teleport / the zentharim lair or the goblins camp ? (Can we open the door to reach the goblin's camp from the underdark if we haven't solved the puzzle to open it ?)
