Yes descend to low level put out the appropriate calls and slow down while you monitor for any other indications, but ditch based on 1 light.... bull****.
Not based on 1 light but several lights/captions and a gauge (see my post #45). If you are suggesting that one waits for other signs such as yaw kicks, grinding noises etc then that is very foolish. Hopefully you are not suggesting that but your post could be read either way.
Try jumping out of a low flying heli at 100' doing 50kts and see what the impact with the sea is like - you might just as well be at 10,000' and 150kts. One has to make the decision to ditch based on the multiple and redundant indications available in the cockpit, not ignore them just because you can't feel / hear anything else going on. Apologies if I am ranting to the converted!