Hi Alex,
I have thought about this very feature for a couple of years now and am also trying to figure out the best way to suggest it...and it would still have to take some individual pilot/plane inputs to make it work as every aircraft has a model/type demonstrated crosswind component from the manufacturer which can be altered with modifications.
For example, my humble 150 max demonstrated crosswind component in the POH is 15 knots, but other planes are far greater...and some are slightly less....so this would take some user input to dial in the right parameters for your plane...and probably more importantly, your skill levels at X-W landings. Of course, you already knew this, Alex...
As for AOPA asking for the component on the automated broadcasts....they may have the same issue. For which planes? They could go "heavy, light, etc." but will probably opt to leave that up to you.
I live in the windiest and gustiest state east of the Mississippi, so this is something I always have to watch around here....
Perhaps this would be possible if each user "dialed in" his/her own max crosswind (and headwind and tailwind) components out of our POH's and then let the computer do the magic by pulling data from automated reporting stations...that might work, Alex. That is what I have been thinking about for a while now. It would be helpful. Like you, I have now gotten pretty good at doing it in my head before, during and while landing. Thanks for bringing up an interesting topic.
Regards, Mike in Carlisle, PA