I would normally agree completely BUT there is a big downside to your idea:
- weather can change significantly during flight
Don’t get me wrong, I totally like the idea of having the aerodromes’s ATIS at hand at all times but to be honest, you can retrieve the most important data from the map already
- wind data + charts enable you to make a pretty good guess which runways are in use
- if you leave arrival/approach on “automatic” the sim will ususally assign an active runway fitting your aircraft; you can then select an appropriate arrival/approach
- weather conditions are displayed in the top right corner
- QNH is (in my opinion) not so important to have on the world map, it’s fine to retrieve it when tuning ATIS while already in the cockpit
As mentioned above, weather can change a lot during your flight which, of course, can also change the runways in operation (which is the most important information in my opinion). This would at least render the destination airports information useless from the moment you click “Fly”.
What would be better (in my opinion) is to have access to the destination’s ATIS waaaaay earlier than it’s currently possible. I mean, I could check weather data on external websites (https://www.allmetsat.com/ is a good site for METAR/TAF) which would let me at least assume the runways in use as well as the QNH that might be currently indicated by the sim (I usually end up with +/- 2 or 3 ticks on the altimeter which is not too bad) but “in game” ATIS messages would be way better. Especially when you keep in mind that real world weather doesn’t necessarily match MSFS weather.