So basically what your saying is that they are trying to hide the fact that PS4 has far more than doubled Xbox sales so they are boosting them yet again.
It's so obvious they are manipulating the numbers in favor of Xbox. Mmany months last year and really since launch PS4 has well over doubled Xbox sales, many months more than tripped sales yet on this site you see Xbox clinging on to 50% sales which is mathematically impossible using the numbers simply provided on this site. It seems like every time they do adjustments it's always in favor of Xbox. I remember several other sales tracking firms had reported PS4 doubled xbox's sales around 18 months before vgchartz reported that happening.
So whats the deal, are these guys taking a check from Microsoft to over track sales or something? I have often wondered if Microsoft stopped giving numbers to give credibility to sales tracking sites like this to over track.