Interesting distinction. Essentially, you are saying anyone with HM3 or similar is a cheat because they are gaining an unfair advantage.
The fact is, many site ALLOW these programmes. That means using them is categorically not cheating. Even sites like
partypoker that have banned HUD's still allow you to import your hand history so that you can review and evaluate your game.
If you are choosing not to use this resource to improve your game then that is, of course, up to you, but you are choosing to slow your rate of progress of learning.
I disagree having a HUD turns players into robots; they still have to make decisions based on the current hand, they just have a little more information available to them.