The way the fix stands now, its also a balancing factor between Russian and Western platforms.
The Russians have better missiles, and the Americans have a better ability to detect missile launches, as the missile launches leave a very distinct trace on the waterfall BB which can be observed on the long-term scope, even if you aren't at the sonar station the moment the missile is launched.
However, if we can make an automatic signal without creating any new issues or something funny in game, then that works for me.
Remember, you don't have an inalienable right to an automatic missile launch warning.
:P
If a more heads-up (heads-down in the sonar station?) player gets an advantage from the current system, I don't have a problem with rewarding diligence.