Well, when the common sense thing doesn't add up........one will question those that complain about the outcome. If you squeeze a lemon in a gallon of water and spray it. IT BURNS the grass. Then squeeze this same lemon in 2 gallons of water and spray it. IT DOESN"T BURN! the grass.
You can either reduce your mixture by 50% or apply more water like you are implying.
It does reduce the initial application of N<P<K but without the burn potential to those that are needing to get more acreage out of a tank full.