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• The OPM tool had a problem with increasing surface area and bugs due to adding more sub-commands.
• The new format allows for operator and catalog authors to directly edit the contents of the index.
• The new format allows for composability, as operator authors can build just an index that contains their package.
• The new format allows for extensibility, as operator authors can make arbitrary changes to the index.
• An anecdote was given about how the new format allows for adding a bundle to a new channel without having to rebuild the entire index.