Open up a csv in notepad vs opening up a tsv.

One actually looks like a table the other is a garbled mess.

I think we have different definitions of human readable then. To me, human readable means if I print it in a printer, it loses no fidelity. What you describe is what I would call machine-readable. It is able to be imported into a program. The same that a binary separator would also let it be imported.

Even in your example TSV wins.