So as simple as it sounds…
Remove the collision model for Auras healing station OR add collision for both friendly and enemy stations. Personally I believe fully removing the model for Auras station and having Stokers ammo station block both friendly and enemies IF you stop its ability to block doors or allow it to be destroyed by friendly fire. Auras station is the main issue here due to its small size. In close quarters its possible to lose vision while remaining blocked. Not only that, simply having something 2 feet high and really narrow being able to block doorways seems really strange.
Currently the enemy stations make the game feel really clunky in a fight and especially when fighting near corners (where it just so happens to be the best place to put a healing station for its primary use).