The sql_statement_starting and sp_statement_starting events in SQL Server 2008 Extended Events have offset information in the basic data output from the event. This information is already available to any event in the sqlserver.tsql_stack Action, and should not be carried on the Event like this as it is not necessary and it is not useful without the plan_handle since the sql_text is not parsable with offset information.
In Denali CTP1, this information was expanded into sql_statement_starting, sql_statement_completed, sp_statement_starting,
sp_statement_completed, and sql_statement_recompile while it is still available in the tsql_stack. This bloats the Event size and this information is not even need because the statement column is customizable and does not require offset parsing to get the firing statement text.