Why DSRL manufacturers always do it?

[Polanski]

I'm just wondering why nikon, panasonic, etc... everytime they have new product on the market, they never post a RAW video of thier products.
Nobody can have a fair judgment about them without seeing a RAW footage.
Is it that they are hiding something?
I remember that the only one that posted a RAW footage was Canon D5, which by the way, I would never buy in spite of its great image quality, because it's only 30fps.

 

[BMFM FILMS]

Maybe a bandwidth issue? Canon got slammed when they put up RAW video.

It's not a big deal, somebody ends up buying it, someone ends up uploading it in high quality for us to all see.