I question the balance.
First, film won in one case because he failed to clean his sensor before shooting. (Would digital have won if he had forgotten to load some film?)
Second, he piles on the digital costs:
350 pounds (~$525) for a portable storage device. One can get a perfectly adequate PHD for $200.
"(S)tacks of 1 gig cards." Hardly necessary if one is also carrying a portable storage device.
Laptop. Again, not a requirement, but a luxury in the greater scheme of things. (Remember that there is no option for reviewing your film shots in the field.)
BTW, did he include the cost of a film scanner?
Third, editing time. This one both bothers and amuses me. What do film shooters do, just snap and forget?
If that's your approach just set up some batch sharpening, etc. routines and let your digital files run quickly through. Then send off your files, unedited as you would with transparencies.
Last, batteries. I've been traveling for three plus years with digital, including trekking in Nepal. The battery issue is way overstated. Opportunities for charging are more common than many would suspect. Remember that one can charge from a vehicle, and few photo trips go more than a few days away from transportation.
The 300D/dRebel takes approximately 600 shots per battery charge (without flash). That's approximately 17 rolls of film. Using the author's cost of 6 pounds, ~ $9 per roll, one would spend a bit over $150 on film per charged battery. I don't have the performance data for upper end dSLRs but suspect that it's far cheaper and lighter to carry some extra batteries.