It does affect a lot e.g. if you want to use the aperture ring or in macro photography (see above).
Most users do just fine in "green mode", so get rid of M, TV, AV, etc.
?
The mechanical aperture ring adds value but also cost.
Nowadays, it is more common to control aperture through the camera (with exceptions, e.g. Fuji, Leica).
It is just less expensive.
E.g. for video purposes, it is a desired feature - again.
But the petition was not about the reintroduction of the aperture ring but only of the aperture coupler.
Nikon at least thought that there were enough customers for which this is really important.
A 6 digit number multiplied by a small amount (as an example
)
100000 * 1¢ = 1000$ - peanuts