[Pharo-project] Ob extensions to Refactoring engine?

Lukas do you think it would worth it to change the category of several methods, from extensions to OB to the refactoring engine itself. For example in my case i don't need OB at all, but are forced to load just because this extensions are goodies i've need when using the refactoring engine. For example BrowserEnvironment>>allNonMetaClasses from the category *ob-refactory-accessing Maybe it's an sign that these belong to the refactoring engine package, the model, and not Ob, the view. What do you think? Fernando