RC Failsafe: only recovery is logged

The other day I was testing RC failsafe on my quad with pixhawk and ArduCopter 3.3.3. The failsafe worked fine, but I found it strange that, on the dataflash log, there is no error indicating a failsafe trigger. Ratter, there is an error (at t = 1060524) indicating that the RC connection was recovered. If I never did recover the connection, the feeling is that there would no event related to the failsafe logged at all. Is this correct behaviour?

You can find the .bin log in:

Thanks in advance