If I'm seeing black crush and you aren't, it's either because (1) you don't see the crush because you have a misadjusted monitor or (2) because of the way you saved the image file and how the browser is rendering it. My monitor is color calibrated with an Eye-One color calibration device for professional work. Is yours? Make/model?
I see the same crush on when looking at these twi images on my IPS-display iPad 3, which is considered one of the more accurate RGB displays on the market.
I don't know how you DON'T see the black crush in these two images. It's really apparent on the right side especially. where the metalic fades into black. It's being crushed. Significant detail is disappearing. I'd strongly recommend re-enabling that YUV -> RGB setting. Or at least not recommending anyone else follow your path. If you prefer it like that, it's cool...but the setting is crushing blacks.
I honestly don't know what you two are seeing or what you expect to see in that image without compromising a calibrated black level. I played the video on my calibrated plasma using PS3 Media Server and it looks like that bottom VLC picture.