There is a note on the module documentation that says:

Note 1: The default value for 'KeyAttr' is ['name', 'key', 'id']. If y
+ou do not want folding on input or unfolding on output you must setti
+ng this option to an empty list to disable the feature.
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If your element 'name' had a different name, things would have worked as you expected, but by default XML::Simple recognizes 'name' hence the need to setup the module with an empty 'KeyAttr' as runrig said.