Google seems to have competing orgs especially when something becomes a company-wide priority. Before it was chat apps, now it's AI. Idk if it's intentional, but it did seem that way with Jetski vs Gemini CLI, where they decided Jetski was better and nixed the other. Also ChromeOS vs Android.
Jetski is a code name.
And it was replaced (I expect, don’t know for sure) because GeminiCLI was built on a code base and language that didn’t scale in performance for what people were doing.