The installer only needs to get you connected for ondemand. Since they were able to direct connect both hoppers, the installer was exactly right in not using the HIC since hardwiring both is the preferred OnDemand connection.
Home Media/DLNA is a whole separate beast and that's pretty much on the customer to get working.
In my case, i only had ethernet access at one joey location for my 2H/2J system. So the tech was pretty much forced to use a HIC with passthrough at the Joey. If you wanted the HIC during install, you might have found a way to either change up your equipment placement or change up your network in a way that would have required it.
you can see the full discussion here.... has a few relevant posts:
http://www.satelliteguys.us/hopper-...-network-connectivity-hopper-joey-system.html
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