That figure is showing the testing network they used to get the figures in the table. The R and C are dummy loads for the opamp during testing, just ignore them.
But you're right about it sounding too simple, these opamps won't work from a 5V supply. They are characterised for +/- 15V (which means the datasheet is very coy about saying much about their performance at lower voltages). One graph suggests they might just work at +/-5V supply, but they are certainly not rail-to-rail and won't work from a single +5V supply.