In The Case for SMEs to Consider Integrated Thinking and Reporting on the International Federation of Accountants knowledge site, Paul Thompson explains why it's a natural fit:

But unlike many larger companies, SMEs often have the latitude to take a long-term view and pursue objectives above and beyond simply profit. Many SMEs are run by owner managers who see business as integral to and a reflection of their lifestyle and values. This lends itself to a way of thinking, and corresponding reporting, that stresses the long term over the short term, the future over the past, and principles over profit.

The article discusses two broad categories of benefits for SMEs: improved management and improved external communications. 

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