The command fuzzy
launches the Fuzzy Inference Systems editor, a GUI supplied with Fuzzy Logic Toolbox. Compilation of Toolbox GUIs with MATLAB Compiler is typically not supported, and as detailed in the documentation for MATLAB Compiler, this is true of the GUIs within Fuzzy Logic Toolbox.
I must say, I think the message you're getting in the mccExcludedFiles.log
file is mostly misleading - all of those things could cause a file to have been excluded, but in this case the only relevant bit is at the end, "(because of toolbox compilability rules)".