Traditional ETL tools focused on getting data out of services and into a few places like a relational DB, S3, or some other such aggregated storage so they were read-only from services and read/write to DBs.
Reverse ETL is marketing to differentiate to the customer that you're pushing data into services as well, so that it's read/write to all.
Of course the concept is amusing to someone talking about ETL, but the market moved at some point to refer to the first functionality as ETL and so this is just a change to differentiate.
Reverse ETL is marketing to differentiate to the customer that you're pushing data into services as well, so that it's read/write to all.
Of course the concept is amusing to someone talking about ETL, but the market moved at some point to refer to the first functionality as ETL and so this is just a change to differentiate.