It seems like a lot of people are twisting Ken's argument into what they want it to be and then proceeding to knock down their own modified version.
Personally, I think both analog and digital are "photography", they both can be "art", and they are equally capable of creating compelling, emotional images. I truly believe that. Having said that, the processes of getting there are not the same. They may feel similar and they may be trying to accomplish the same thing for the same purpose, but at a step-by-step process level, I think the considerations that go into the image-making are just different.
That may be a distinction without a difference to some and if all you care about is the end-product and whether it is compelling, emotional, honest, etc., than that is fine - a completely valid perspective. But I think it's hard to make an argument that the processes are not, if nothing more than at a physical, "what you actually do" level (i.e. stand in a darkroom vs. sit at a computer), different.