But you seem to be missing a very important part of the meaning behind that formula (according to what I have read of your posts so far). The redshift to distance relationship for very distant galaxies has been found to be greater than it should be for an expanding universe. In other words, the expansion is accelerating
. So far, no good reason has been found why this should be occurring, although I'm sure in time many theories will arise such as with reconsidering the cosmological constant. But don't you see? This is precisely what the tired light theory predicts, which gives it an edge over Big Bang cosmology. Since the redshift to distance formula is not linear after all, but is instead z=1-1/[e(Hd/c)
], it would cause the apparent redshift of very far away galaxies to seem to be moving away faster than they should be, hence the appearance of an accelerating expansion.