Hi Corey! I'm the author of the blog post - I definitely agree with you. 9 times out of 10 engineering teams underestimate cost of engineering work as well as o

Hi Corey! I'm the author of the blog post - I definitely agree with you. 9 times out of 10 engineering teams underestimate cost of engineering work as well as opportunity cost lost due to managing non-core functionality internally or moving away from managed services. For us our pipeline was actually easier to work with Flink than Glue because of the restrictions that Amazon placed on it and so that factored into our decision.