$28M seems like an awful lot for a static site generator. The issue I see Gatsby facing is that the poor developer experience will catch up with them, regardless as to whether they expand their ecosystem (plugins etc). If the developer experience isn't improved, I doubt their money will convince '1%' of all websites development teams to make the switch. Especially if this thread is a good approximation of the mood towards developing with gatsby.

However, it's much too easy to join in with the typical HN cynicism to shiny new things. Maybe Gatsby will surprise us and become a contender within the CMS space before long.