Hey guys,
since it seems like there are many interesting spots to use the demonic gateway in 5 man instances to skip some trash, I found one with my lock in siege of bolarus today.
I am pretty sure that this little skip was not intented by Blizzard ( or it is ? ) . Its right after killing the 2nd boss , when you got to to take an alternative route full of trash mobs.
Just look at the screenshots and save a bit time, but care : you will most likely pull some trash and a big one by flying over to the other side.
If this is not an " exploit " like it should be , feel free to move it into the guide section !
1) https://i.imgur.com/VjpOFIs.jpg
2) https://i.imgur.com/d8p0oWq.jpg
-> Stay like this and click towards the tree.
3) https://i.imgur.com/RuHr3YG.jpg
4) https://i.imgur.com/glfzVjB.jpg
Here you can see the minimap and how much ( or less ) you skip.
Have fun guys.
I know its just a little thing, but it saves you a bit time. So why not ?