The single player events in that level are interesting but I imagine that Epic may have been planning on allowing more events in Multiplayer such as outside influences that would hurt you (ie the lizard or other animals, and the hurt event, which only half-works in multiplayer).
I'm sure they wanted to be able to use that Bird too, it seems like that would have worked fine in theory for Multiplayer - but there must have been a bug.

Boat Ack