From your own link: > As our business grew, so did our resource utilization and latencies; to keep Schemaless performant, we needed a solution that would execu

From your own link: > As our business grew, so did our resource utilization and latencies; to keep Schemaless performant, we needed a solution that would execute well at scale. That's the third sentence. Clearly it was not an "emotional decision" and it was in support of their business model (scale).