Back again with another small, but potentially fruitful, suggestion! 
Right now, the ability to show/hide column headers is all-or-nothing. However, I often find myself wanting something in the middle: a handful of column headers visible and the rest hidden because the information is self-explanatory. An example of where this might be useful is a button column in a table: I typically make the button so it has a clear CTA, but then I have this column header over at the top that gets filled with “CTA button” or something similar and it feels like it shows how the sausage is made (so to speak). If I could just hide that singular column’s header, it would feel like a cleaner experience!