What are some of the shortcomings/pitfalls associated with the value-sensitive design (VSD) methodology used for assessing the needs of end users and incorporating impacts on stakeholders?

What are some of the shortcomings/pitfalls associated with the value-sensitive design (VSD) methodology used for assessing the needs of end users and incorporating impacts on stakeholders? 

And how you can prevent and/or address those identified shortcomings/pitfalls to allow for effective use of VSD approach?