Yeah, just a bit of wapring - not much one can do about it without risk of introducing even more problems, plus it's barely noticeable.

As to the VLC vs. MPC+MadVR - that is why I use MPC+MadVR. Lots of people who use MPC use EVR Custom Presenter, which has much worse results. Plus, in MadVR, you can turn on an anti-banding filter, which works miracles for compressed gradients and it has a great full-screen exclusive mode, which helps those with slower computers to run MadVR (which is a bit more CPU heavy) smoothly.