Too early considering NIP04 is still there 🤣

I think that NIP-17 is still a really good spec. It's just that it doesn't handle groups or give you any forward or post-compromise security. Meaning if your identity key leaks, then all your conversations for all time have leaked. But, it's very easy to show messages across multiple devices and clients with NIP-17 which is nice for simple clients that might not need high security.