I wrote about this a while back, and my adventures with their customer service. And what one of their distributors told me.
In a nutshell they say they intentionally leave that LED on, which is capacitor driven, as a "safety" and "parking" feature. When I call them to ask the first guy got literally agitated with my questions about why it was on there. The second guy tried his best to explain it away as a safety roadside feature, then as a parking anti theft feature. When I pointed out that both were silly and useless he tried explaining a bit more than kinda said there was nothing he could do, it was from the manufacturer of the board.
A distributor of their product was more frank with me and said that it was plain stupid and people get really mad when they get it completely assembled and find out about it (And usually panic and disconnect their battery wire). He said they believe it was part of a ...... design to discharge a capacitor they used in the unit, and they basically came up with a problem to suit an answer, not the other way around...
Regardless, I sure wont have it on my bike. Who wants to turn off their bike and a red LED attract attention to it for 20-30 minutes while the cap discharges, OR have to listen to "sir you left your lights on"....