Yeah, I think this new thing would be less useful for Lambda as that does support TCP connections. However a HTTP API is required for e.g Cloudflare Workers where you can't create a normal MySQL client. I think that's where this could shine.
We are hearing from some users that the performance with Lambda is really good with the new driver. We are going to do some comparisons soon to see if there is more worth sharing on it too. We are going to do a Twitch stream adding it to a Lambda on Tuesday at 11am CT if you are interested. https://www.twitch.tv/planetscale
