Why only a 3 line keyboard? Having to use an on-screen keyboardlet for punctuation and #'s seems to detract from the point. If they were serious about spreads

Why only a 3 line keyboard? Having to use an on-screen keyboardlet for punctuation and #'s seems to detract from the point. If they were serious about spreadsheets, why not shrink the keyboard horizontally and make the first phone (in a long time?) with a numeric keypad.