There are several reasons why.
Technologists have tunnel vision driven by a sense of technological determinism.
Technologists find it hard to understand a casual users' misconceptions. It's too easy to add more features to a product. Understand that for each new feature you add you must take one away. Techno machoism and ego often get in the way. Ask your cable or satellite TV operator if TechTV is available in your area or contact your provider to request TechTV .