I think it would be nice to have auto-scout as a feature. In a lot of games with the feature, some people use it, while many don't. Higher-level players find it doesn't scout as efficiently as they want it to, so they prefer to scout by hand. Lower-level players like the APM it frees up, so they are more likely to use it. I think it's a fine feature. It's something that was desired in the original game design 20 years ago. It would be neat to have it come back.