I bought a Olympus 50mm f/1.7 last weekend for $15. Since we were talking a 15-85mm IS lenses at $800, $50-$100 is cheap.
The Nifty 50 is a good lens, but, for video, its manual focus, and if you have ever done much manual focusing with the 50/1.8. you would be very happy with the feel of a vintage manual focus lens.
The low resolution of 2K video does not require a super high resolution lens unless you are doing it for the big screen.
Okay, let's look at same-priced options:
60D $900 + $17 lens
Costco, get a T2i (18-55mm & 55-250mm) $849.99 + tax
Which do you think a non-pro is going to get more mileage out of for all around use?
I think you need to consider the audience; $17 is nice, but no zoom or AF is pretty much a deal breaker for anyone starting into photography.
Your suggestion has merits, but when most entry-level DSLR shooters don't even exit auto mode . . . recommending Manual Focus Only options seems like it will fall on deaf ears.
Now that I look at it, you could score $200 on the two kit lenses there and have a 15-85mm for $560 providing you felt like working for a deal.