Wraith's Dimensional Rift and Ziplines

I don't know if it's intended but Wraith is not able to use Ziplines while using her ultimate ability to place portals down.

Sometimes the enemy is in a position that the only way to reach them is by a zipline, and you want to bring your team to them but your not able to.

If the enemy is downhill from you though it's not really an issue because you can drop down and run across, but if the enemy is uphill you're out of luck