Quite literally a video about that.
With maneuvers and countermeasures, dazzle IRCM is not effective without the other components of operation.
The base AN/ALQ-144 did not have separate modes and was only effective against early missiles, such is on the early AH-64A, subsequent models sport the AN/AAR-57 which directs all countermeasure systems automatically including the later make AN/ALQ-144s.
One of the issues with the AH-64 series in game is the lack of the AN/AAR-57 on the D series of helicopters and on the likes of the premium Peten and Greek AH-64A, such has been reported but ignored like many of the other issues present within the AH-64s. (Still missing their expanded CM launchers and such)
So as the functionality is not modelled in the game, what state should the switch be in?
As much as I also like the models as authentic as possible, I find that really a very minor cosmetic issue.
I’d rather see additional functionalities added, and there’s plenty of examples of sorely missing stuff there (navigation, ground mapping and terrain avoidance radars, ECM,…).
Then there’s a lot of gauges with functionalities in the game where the gauge (or switch / button / light / whatever) is not showing said functionality as well. For example a lot of not most RWR warning lights are no (yet) modelled to work correctly, or various fuel and speed gauges and other are not working at all…