The benefits of data lakehouses are overstated: open data != open platform

This blog post argues that the benefits of data lakehouses are often overstated, especially regarding the perceived advantages of open data and avoiding vendor lock-in. It examines the actual costs associated with data export, the limitations of access control in open table formats, and argues that data warehouses can provide sufficient compute flexibility. Ultimately, while lakehouses have their merits, they introduce complexity and are not universally superior to traditional data warehousing solutions.