There are plenty of cases where the message was contained in the short term, but became public later on to no great consequence.
For example the president maneuvering the US into WW2 would have been a scandal at the time, but after the war WW2 was seen as inevitable so the now pubic records didn’t cause an uproar.
Or the MKUltra declassified documents. If it has come out at the time, it would have been scandalous, but 30 years later it’s seen as not worth pursuing criminal charges, or even stopping similar things from being done in the future.