I feel that a new license model is needed to incentivize better behaviors on all sides.
A charitable interpretation is that Redis was being naive. A more realistic interpretation is that Redis knew a proprietary license would not have allowed it to be widely adopted, and that only a standard permissive license would have allowed it to be adopted, and now that it's popular they can force a change due to inertia on developers' side.
I just think something like Redis has no place being open source. And we should just be honest about it instead of beating around the bush. This whole "we will spend our R&D making a free software and make money on hosting" never had any legs because the obvious conclusion is someone can also make money on hosting your software without having put in the R&D work. If yet another new company comes to the market saying "we love open source" we should just be skeptical. The business model likely just doesn't make sense in the long run.
Other people will have to decide whether it is a better model.