Such a braindead exercise to see Redis follow suit
I agree, this sounds like a desperate cash grab.
I mean, cloud providers who are already using Redis will continue to do so without paying anything at all, as they’re using stable versions of a software project already released under a permissive license. That ship has sailed.
Major cloud providers can certainly afford developing their own services. If Amazon can afford S3 and DynamoDB, they can certainly develop from the ground up their own Redis-like memory cache. In fact, Microsoft already announced Garnet, which apparently outperforms Redis in no small way.