With people who are NOT novices, good "hand-on" management is two things:

[1] trust in the technical work (as in the article), and

[2] an attitude of service.

The "hands-on" dialog by the manager should be about: 'how can I help you?' 'What is getting in your way?' 'What do you need to get your work done better?'

An attitude of "hands-on" service is rarely resented -- "hands-on" control usually is.