RudderStack founder here.

We tend to believe we have a pretty good reverse-ETL product too which can be used standalone without event collection. Best is class is a moving target anyway and upto customers to judge :)

However, I do agree on the point around focus. Our positioning, go-to-market, pricing, use cases etc are centered around building the end to end customer data infrastructure. There are folks who already have pieces of the stack or don't need a full CDI (e.g. non PLG B2B companies) and only need reverse-ETL.

The market is enormous so I believe we both will do great. Congrats on the launch.