Why is Emmanuel de Bom's Wrakken considered an early modern Flemish novel?

Emmanuel de Bom's Wrakken (1898) is recognized as a landmark in Flemish literature because it is considered the first modern Flemish psychological and urban novel.12

By shifting the focus toward psychological depth and an urban setting, the work diverged from the more traditional rural or regional themes prevalent in the literature of the time, marking a significant step in the modernization and internationalization of Flemish culture championed by the Van Nu en Straks circle.12