Agreed* Peter and thanks for shedding light on this confusing situation!The systems and sensors are all fine but the software is antiquated due to issues we know (ownership, focus, relations, etc.).
We are not talking about anything other than software features that have been developed and distributed widely, but not to you for your airplanes. Annoying to be sure.
It is most unfortunate it took the G1000 petition to formally draw some long overdue attention to this still unresolved situation - as the FUD factor continues for legacy owners.
*with only one exception to your software observation - there is a single hardware component requirement to this situation, as according to CFI Dave, a GIA63W is mandatory to receive the "free" ADS-B Wx stream.
Why an LRU WAAS box is also needed to receive FIS-B Wx remains a mystery to me, given the GTX-345R has its own built-in WAAS capabilities (only non-TSO'd for navigation).
FUD = fear, uncertainty and doubt (an acronym coined by Boatguy in the G1000 thread)