Maybe so but it works for me. There have been threads on useing only one hone successfully getting a shave ready edge. One hundred years ago people did not have a chance to not of hones. They only had one or two. Ask Bill how my razors shave. I have donated a few to the give away over the years. He test shaved and was satisfied. Sometimes less is more.
The bottom line is Whatever works for an individual is good for me.