That woudl be correct:
uPnP is not needed for MRV... has nothing to do with DECA either way (DECA is just the communication on YOUR side of the router).
But this discussion was about TVApps.
For TVApps though, with the mix of secure and open communication with the App Head end. Right now we have manual configuration options for Network Services, if you don't have uPnP... and it will eliviate some of the issues people have seen with TVApps.
We are working on making it more robust and provide more tools and information to the end user so they can adjust their home networks, if they don't use uPnP and want to have a more aggressive firewall settings.
Thanks, that clears up some confusion and should be a sticky somewhere.