I agree with Julie here. If you tell users you're providing Debian, it should be stock Debian (or as close as possible as is needed to support the hardware). Likewise for every other distro.
I would be incredibly irritated to get a "Debian" computer card, only to find out that some of the software I planned to use doesn't work properly because the distributor of the card decided to tweak the software before sending it to me. With a stock Debian install, it's Debian's responsibility if something doesn't work properly, not yours.