Thank everyone for the clarification.
During this discussion and some poking around the net, i just realized that we are talking abot 2 different processes concerning possible weather requests into the machines.
1. Fetching weather - Weather data for calculations
The first is related to (complex) forecasts, where weather is requested and injected in probably a lot of calculations (descend, cruise, alternate calc...) I think most of you reffered to this point, because i misleadingly posted a that screenshot.
2. Fetching weather - METAR data (ACARS)
The second is related to ACARS only, which have nothing to do wit any calculations. This is simply grabing METAR data and presenting them on the screen of the CDU/FMC.... Besides the METAR, ATIS seemes to be a common data thats fetched via ACARS?!
I know that this things (esp. ATIS) are of a low priority. I think we all can understand that.
But having (one day) especially the METAR fetching routine within a ACARS section in the IXEG 737 would make at least the PilotEdge/IVAO/VATSIM simmer pretty happy.
I would expect the effort of fetching and presenting METARs should not to be that huge. I am quite surprised why this ACARS functions have never made theire way into a FSX/P3D/X-Plane cockpit (afaik).
Thank you