If you use just the L bracket and the charger that came with the light (an MCC-3) then it will be fine. You cannot use the long cable MCC1A that comes with the L-kit as the manual says, "Only charge with standard MCC3, not compatible with other MCC.."
You might mention this to Olight and ask them when an MCC3 L-Dock will be sold? They might even have them?
BTW, FWIW, it might work with the MCC1A, it might not. The MCC3 actually talks to the light and asks what charge current it would like, and the light (if MCC3 compatible) will reply. In theory if the MCC3 gets no reply it charges at 1A. I'm also told that if you rapidly connect and disconnect the charger four times it will drop to 1A mode (or 500 mA, I forget). I find that some of these MCC3 lights will take a 1A charger, some won't.