VestaCP generates insecure passwords for new databases?

[rhyker2u]

Currently migrating one of my WP projects from a VPS with VestaCP, to a shared hosting account with Plesk. And as I don't feel like changing the wp-config.php using the same passwords for the MySQL DB as I had in VestaCP. But ... I get a notice how the password difficulty is only average. Hmz .. okay. :( Thus that raises my question: why does VestaCP generates 'insecure' passwords for new MySQL DBs? Is that a bug or feature with deeper reasoning behind it?