The Alliance jump skip across the water at the start of Siege of Boralus has changed in The War Within, now immediately zoning players out of the dungeon! Fortunately, players can still use a slightly different route to get back onto the enforcer bridge or take a new path through the Tradewinds Market.
Previously, players were able to jump off the side of the Alliance starting platform, quickly skipping across the shark infested water to the small access bridge down below. However, the Horde entrance portal has been moved in The War Within, causing players who jump down to be immediately teleported out of the dungeon!
Fortunately, this is only a minor inconvenience for players who are aware of it, as the invisible transition can be avoided by simply running around the side and dropping down from the right instead.
While this will aggro mobs that can hit DPS and healers pretty hard, a tank can easily pull them while the rest of the team jumps down safely. With no path down to the players, those enemies will drop threat after a short time.
Another strategy is simply killing that pack and progressing up the stairs instead, helping complete the high Mythic+ mob count requirement and ultimately converging on the same set of Gallows before Chopper Redhook.