It would be really helpful to have a bulk load 'output' tool to Snowflake. This would be functionality similar to what is available with the Redshift bulk loader.
Currently it takes a reaaally long time to insert via ODBC or would require you to write a custom solution to get this to work.
This article explains the general steps but some of the manual steps outlined would have to be automated to arrive at a solution that is entirely encapsulated within a workflow.
http://insightsthroughdata.com/how-to-load-data-in-bulk-to-snowflake-with-alteryx/