Let's get facts straight here. They weren't concerned with the integrity of Jungle Cruise, or else they wouldn't have added mentions of Indy to the spiel in the beginning of the jungle cruise. That famous concept aren't scene that never was was just one of very many
budget cuts that Indiana Jones Adventure went through over its development/construction years. Same reason those diamond-shaped stones don't do anything.
If they really were concerned with preserving one of the oldest rides, their priorities sure changed with Pirates of the Caribbean among others.
-- PMM