The french did try to export their ideas in some form or other to their neighbors. However, given how most of those neighbors cracked down on those ideas and invaded france after louis was recaptured and the revolution became truly radical, they tended to go about exporting those ideas via the revolutionary armies. A more passive spread requires a chance to spread, which means a more moderate revolution, less controls by the rulers elsewhere, and/or time for revolutionary france to coalesce and be accepted by the rest of europe, all of which the USSR had to some degree when it began exporting communism.