Perhaps they haven't kept up on changes since Roku Firmware 3.0 was released.
Since Firmware version 3.0:
• input enables a developer to send custom events to their Brightscript application. It takes a user defined list of name-value pairs sent as query string uri parameters....
blah blah blah...
I'd suggest perhaps the developers you are working with have never used this feature before - but pointing them repeatedly to the documentation which shows how to implement it ought to help get it done. Also keep in mind for Scenegraph this might need to be done in a task thread as it involves getting data over the network. I haven't tested it in scenegraph. If roInput is blocked or deprecated for scenegraph then you might be in trouble.
