All those classes on how to use Extended Events haven't been wasted.
And before there's more whinging about XML in Extended Events, let me point out two things. Using the Live Data Explorer window means never looking at XML. Using DBATools to query the Extended Events data means never looking at XML.
The XML argument is just tired & old. Plus, there are tons and tons of example queries that can be emulated if you do actually need to look at the XML. Focus on what tools can do for you instead of 12 year old reports of a tool's shortcomings.