Perhaps PKP this is because the METARS frequently lie like NAAFI watch.
Trust me when I arrived in Dubai incidentally from THY where the rosters were loads easie to manage and much better in B737 fleet! I also found it odd, I was an FO then and the skippers would often ask for the actual weather.
After operating to all of the 18 Russian destinations from braking action poor, to -37 degC, to 35 kts across the Rwy in fog. I also sarted to ask the same question.
You call it mistrust if you want to. We call it experience! If you're experience of Russia is a Cat 2 into UUDD or UUEE then it is a very different world east of the Urals!