I don't know about that. Asking a service provider to provide an implementation for a cache interface isn't a "massive investment". It's an investment sure, but it's the type of investment that seems should be customizable per provider depending on their needs, technologies they want to bet on, etc. It seems to me the problem with Netlify isn't comfortable putting in the investment to have a NextJS specific cache service. It's understandable considering they don't control the framework and to them it's just another option, so they don't want to invest in it too much.