ORIGINAL: RCKen
If an experienced pilot uses expo he does it as an aid to his flying skills, but if a beginner at this level uses expo he's using it as a crutch to make up for lack of skills. One of the biggest things that a new pilot needs to learn to do is not over-control the plane.
This is very true. I think confusion is another big factor. Some of the programming available on high end radios can get pretty complicated. If you are still trying to figure out the basics, an added layer of complexity just makes it that much harder. I've seen people accidentally reverse a channel, screw up an end point adjustment, put the radio into mode one or something like that and not remember how to undo it. Their flying day can be ruined unless they remember to bring the manual or someone else is around who knows that radio. I have nothing against a computer radio, I typically use my DX-7 and love it. You just gotta take things one step at a time in my opinion.