Yes, by developing this new solution solely in the Cloud there are significant benefits for schools.
There is a lot that has been written about the benefit of cloud based applications. This article by AWS provides a neat summary of the benefits. https://aws.amazon.com/what-is-cloud-computing/
In brief, Cloud hosting allows your school to benefit from the highest levels of security without having to invest heavily in infrastructure, and without compromising accessibility; Users can securely access their data from anywhere without putting pressure on your network. Your data will remain safely stored in Australia.
Project Horizon is being built with all the current cloud-first technologies which will allow Project Horizon to scale with your school’s or organisation’s needs.
The Cloud frees your school from the overhead of managing server storage, memory and CPU. System and software updates are also automatically taken care of. There is no additional overhead for redundancy, disaster recovery or backups.