No, you are correct. Honestly, I've got no idea how long they have been putting alcohol in our gas here - but, for sure, its not been 35 years. Probably more like ten years. Whatever it is - I've noticed no problems with the gasohol.
I never have drained my gas from any of my small engines and have never had any problems with gummed up carbs etc. However, I have always put Stabil in the mix for any/all of my small engines. Maybe that is why I've not had carb problems.
And I'm almost exactly 25 miles due SW of Spokane, WA - - as the crow flies.