Now what's starting to happen is that the plugin ecosystems are diverging. Subjectively, it seems like plugin developers are significantly more productive working in languages that are not Vimscript. Accordingly, Neovim seems to be accumulating more sophisticated IDE-like plugins, and this appeals to me on a personal level.
Now that the remote plugin and Lua APIs (including Tree Sitter and LSP!) are somewhat stable, I expect this productivity and divergence to accelerate. I feel like Neovim will be approaching Emacs "power parity" in the next few years, and that's a very exciting prospect to me.
Now tweaking vim to the behavior I want is no longer learning an obscure language but figuring out what is the behavior I want and coding that using lua and the vim api. With the lua language server vim’s api is very discoverable!