We helped them telling METAR was a good idea when servers actually was sending incorrect data like the 225@3kts all the time at release. That issue actually caused them now to change for METAR-blending.
This is the OP issue reported august 2020 on that thread.
Match what? It should have matched Meteoblue but it clearly didn’t because i know for sure Meteoblue does not report winds at 225@3kts everywhere in the world. But that thread they pointing to that requested METAR.
I’m not a coder but to me the fix would have been to make sure the correct data was injected all the time from Meteoblue. Not to implement METAR.