I am unsure if its just the lore with Artanis but it seems weird that an enemy hero going through the switch positions cannot go through your own gate but Artanis can go through the enemy gate. Surely it should be yes to both or no to both.
How does it make no sense when the interaction you just explained is no different than having Stitches do the same thing, which of course he can’t without the help of Gorge.
Weight out both scenarios and you see swapping a player into your fort would have no counter play and that swapping yourself into their enclosed own area is simply the dumbest thing you could do in the first place.
There are other numerous swap possibilities you can achieve at a certain angle through the terrain, or the so called reverse swap where you move opposite of your enemy’s escape route and drag them into the direction of your own Q - you can find many example on Youtube - however this isn’t recommenced unless you outnumber the enemy or have an escape plan because you put yourself at a danger.