No Aaku, it is quite simple as it is. And no do not worry regarding the other plugins which use WP-cron as well as FEP. This solution is just an another way to run the scheduled tasks.
Actually, if you have 5000 active users then you should definitely disable the wp-cron regarding performance reasons.
If you need my help I can help you to achieve this. Please let me know (ugurterzi03 at gmail com)