This is a big issue for us also. Users expect that they can select and copy text from reports. Without this ability, just to copy-paste a cell's contents into another window, we need to:
1. do a full export to CSV,
2. open the extract in Excel, and finally
3. locate and copy the correct cell's contents.

Any chance a workaround could be created (or already exists) to more easily copy data from a table viz? Thanks!