Minecraft Bedrock - Nether portal in-game vulnerability solutions

On the Minecraft Bedrock platform, an unsuspecting player on the survival game-mode may travel to the nether via Nether portal, and essentially be ambushed by any hostile mobs lurking on the other side. During the teleportation process, the player is placed on a loading screen until all assets are done, but unable to do anything whilst still vulnerable to all outside elements. Adding a form of immunity, or not placing the player in the portal until all assets are finished loading in, can prevent such happenstances.