Enhance description of when to use parser

pkg/ottl/ottlfuncs/README.md

@@ -449,6 +449,7 @@ Available Converters:
 - [ParseCSV](#parsecsv)
 - [ParseJSON](#parsejson)
 - [ParseKeyValue](#parsekeyvalue)
+- [ParseSimplifiedXML](#parsesimplifiedxml)
 - [ParseXML](#parsexml)
 - [RemoveXML](#removexml)
 - [Seconds](#seconds)
@@ -1341,8 +1342,8 @@ Examples:
 
 The `ParseSimplifiedXML` Converter returns a `pcommon.Map` struct that is the result of parsing the target string without preservation of attributes or extraneous text content.
 
-The goal of this Converter is to produce a more user-friendly representation of XML data than the `ParseXML` Converter,
-which produces a verbose *encoding* of XML data.
+The goal of this Converter is to produce a more user-friendly representation of XML data than the `ParseXML` Converter.
+This Converter should be preferred over `ParseXML` when minor semantic details (e.g. order of elements) are not critically important, when subsequent processing or querying of the result is expected, or when human-readability is a concern.
 
 This Converter disregards certain aspects of XML, specifically attributes and extraneous text content, in order to produce
 a direct representation of XML data. Users are encouraged to simplify their XML documents prior to using `ParseSimplifiedXML`.