The docs at https://www.visidata.org/docs/ seem to contain any trivially remembered functionality for what I think of from a spreadsheet tool. I'm not a power user and couldn't describe how to use pivot tables, for example. Are there low-hanging features you miss from that page?
I agree that this is not going to satisfy something like 80-90% of people who just wanted Excel because a TUI is a nonstarter. I do think calling it "not even close" is unfair if we were strictly talking about functionality.
This looks more like a database interface and less like a tabular calculator.
Supposedly part of excels good design is it was always agnostic as to whether you're using it as a spreadsheet, poor man's database, or pretty table maker.
I agree that this is not going to satisfy something like 80-90% of people who just wanted Excel because a TUI is a nonstarter. I do think calling it "not even close" is unfair if we were strictly talking about functionality.