Embedded iPaaS platforms promise ease of use for non-technical users to build integrations with prebuilt blocks, but in reality, they rarely work at scale due to several issues. The assumption that non-technical folks can handle integrations 100% is flawed, as real-world integrations require deep knowledge of the product's data model and reasoning about edge cases. Prebuilt blocks often don't align with a product's integration logic, leading to limitations in extending them without writing code. Additionally, embedded iPaaS tools lack primitives that developers need for robust integration infrastructure, such as end-to-end type safety and support for continuous syncs. They also break at scale due to serialization and deserialization issues, data passing limitations, and rate limit handling problems. In contrast, tools built for developers offer full control over integrations, handle OAuth and other complexities out of the box, and are built to scale with the product from day one.