[rshrin]

Not for this use case. Other use cases at Netflix use AWS Managed service when it makes sense from a use-case and cost perspective. In this case, using TimeSeries opens the door to a lot of other potential future use cases:

1. What was the count for counter X between times T1 and T2? 2. "I am going to re-run my batch job again from yesterday. Adjust the increments for this window and re-compute the final count".

Although the #2 use-case requires lot of other nuances around Recounting, which we allude to but don't expand upon in the article (adjustable retention, multiple rollup checkpoints per counter, pushing back accept-limit for backfills etc.)