I am sure the MOPAR CAI is more secure than the stock dry paper filter. The CAI filters are oiled to trap debris. Oil and water do not mix under normal conditions, the aftermarket CAI should, in theory, keep water from entering the intake.

However, injecting water into the engine should lower the intake charge, creating a more dense volume of air.

I am not an engineer, I am just blabbing stuff off the top of my head.