Tim Swanson thinks transactions cost 25 BTC divided by the number of transactions in a block. That's a complete misunderstanding of not just what the block reward does but of what Bitcoin even is. He has gathered some interesting data, but his analysis is unlikely to be of much use as he has no fundamental understanding of Bitcoin in the first place.
Tim Swanson (who understands bitcoin's economy much better than most bitcoin gurus) is looking at the miners as an entity that performs a service to the "bitcoin system" (validating and securing transactions) in return for a payment (the block rewards and transaction fees).
That's where you and Tim are mistaken prof. You are completely ignoring the main function of the block reward, which is to distribute the tokens.