Unlikely. Although some writers are temporarily slowed down by having to take the time to learn new concepts and integrate them into their working methods, others find that process liberating and creatively energizing.

Making choices is part of the creative process. When you make choices, you decide not only what you want to do in story, but also specifically what you don't want to do. Two quotes do a superb job of illustrating this issue:

"At first sight, the idea of any rules or principles being superimposed on the creative mind seems more likely to hinder than to help, but it is quite untrue in practice. Disciplined thinking focuses inspiration rather than blinkers it."
-- G. L. Glegg, The Design of Design

"The Enemy of Art is the absence of limitations."
-- Orson Wells