Yes, you are basically posting a modern equivalent of the famous "Dropbox reply". "EMacs and Treesitter...naive grep implementation".
There's value in these tools, that's why GitHub, JetBrains, Cursor all built businesses on top of AI coding extensions. Personally I don't use the "Write this full function for me"-features but use it as a way smarter auto-complete. People don't really use them to jump to "find all references to X" as that's perfectly well solved.