This view is a bit off. First, keep in mind that MLX was and will not be able to access the ANE, so it's a total non-starter for anything user-facing. Based on updates to coreml docs, they're trying to sell CoreML as the tool for tabular or domain-specific applications and CoreAI for NNs moving forward.

I use CoreML for models designed for other platforms. I port the models to it but it works for that without much trouble.

MLX is not for end user deployment.