The article says they had 70k turnover. Take http://www.quora.com/What-are-typical-exit-revenue-multiples... as a ballpark estimate for a multiple. They'd have been very lucky to be paid 7 figures.

5 million is a lot of money. Sometimes I feel like it's 1999 all over again - people spouting 200k salaries and 8 digit 'acquisitions' of < 10 people companies as 'normal'.