This one is not useless information.
Some people will go two whole years without using their compass because you only need it for the first week of an expansion if you're not using alts. The next time they use their compass they might have forgotten that they turned off the no-current message, and then we'll have people asking why their compasses aren't working.
"The compass does not detect any nearby currents" is, in fact, important information. It tells you that the reason you're not finding any currents is because there are none, and the game is working correctly. If this message is annoying and pointless to you, I have to wonder why you keep trying to activate your compass when there are no currents. Maybe just stop activating your compass in zones where there are no more currents?