If I get some time I'll test it for you and let you know via this thread, but I've made a point with this NAS of not doing anything in the command line because I want to keep it as out of the box and standard as possible. I know it's not hard, but my last NAS was basically all command line and a lot of tweaking which made for some interesting times during some upgrades so this time I'm keeping it all standard and working around any limitations.
For the documentation I wasn't suggesting you document specific issues with platforms, just what the button actually does which would help anyone in the future if they were wondering what was happening. It maybe just me, but I wouldn't have bothered to ask about this if I'd realised that the restart was an OS thing, not part of the button function. Eg: The restart reactor button shuts down reactor (or the container) and the OS is then responsible for automatically restarting MSR using whatever specific method is supported.
Anyway, coming from Reactor on Vera I'm very happy with MSR so far and this was just a suggestion.