It is important to reference the exact same files that are listed for each control in the help article, because they will be easier to upgrade when a new version comes out instead of generating a new common file on each upgrade.
Also, as mentioned in the help article, the order in which the files are referenced needs to be kept, because there are dependencies between some of the files, which you could break when you place all scripts in a single file.
Overall, the merging of the resource files is a customization and it is not supported. I would recommend using the approach that is suggested in the documentation.
If there is a specific reason for merging the files, you could describe it so that I can suggest an alternative approach is such is possible.
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