I think that it's part of the trade offs that you run into with knife making. A 3/32" blade will give less resistance to slicing but it will be less strong than a 1/8" or 3/16" blade. Thicker steel will also allow the primary bevel to be brought up to the spine without making the bevel too fine, which is itself a subjective value. It would also depend on the steel being used. Some of the higher alloy steels, such as stainless, are more brittle and a 3/32" blade would be more subject to breakage. Then there is intended use. A thinner blade might well do fine if all it will be used for is skinning but not so good if it was go to be put to a more strenuous task.
Doug