Alex Wheeler
Site $$ Sponsor
If you are manufacturing a new action there are benefits to honing and some manufactures do hone. After the blank is drilled the hole is honed with a long hone at least as long as the blank. This will give the manufacturer a hole that is on size, plus or minus a tenth, and straight with no bow. Like building a house if you start with a good foundation the rest is easier.
If you want to hone a finished action it isn't going to work. on a finished action you will be trying to hone more air than steel.
The better actions are edm'd. They dont need to straighten the hole at that point. Your last point, is in fact when they are honed, and why they are.