Welcome to Smogon! Take a moment to read the Introduction to Smogon for a run-down on everything Smogon, and make sure you take some time to read the global rules.
MagikaripIsOP -- no, because win % is a garbage statistic, especially on a rated ladder where the theoretical win-rate for any team is 50%. What the moveset stats report instead is a Pokemon's viability ceiling, which is the highest GXE of any team using that Pokemon. There's additional...
I'm pretty sure "Let's Go" didn't affect any of this stuff, but if something looks wrong, please ask a smod to email me to take a look.
Recall: stats are weighted 20:3:1 Dec:Nov:Oct weighting, with the cutoffs for rises and drops at 3.41% rise/drop cutoff.
Let's pretend I didn't just generate combined stats using a nonexistent second-month folder...
Anyway, changes should be accurate now. Thanks for the quick catch.