Teleport is no longer providing immunity

I have just started tww and I see that after teleportation there is full screen flash (glimpse of portal room) and only then there is a loading screen. So between the end of cast and actually loading screen to a new zone there is no longer immunity and I can still control my character, though I dont see anything. Is it intended?

Before TWW: Teleport cast finished - Loading screen with immunity
After TWW: Teleport cast finished - Fullscreen flash with character movement allowed and being vulnerable - Loading screen with immunity

If character dies during the flashbang, teleportation stops, even though the cast has ended seconds ago