IHP includes a GUI to build postgres schema - this is really cool and much appreciated. Databases have been existing for ages now and so are the GUI tools to manage them. However, it's unfortunate that most web frameworks fail to provide functionalities like this.
Working in similar space[1], I have been talking to many early customers. Right from somebody who knows enough programming to product managers to CTOs, the idea of having a GUI within web framework and to have CRUD APIs ready with just few clicks gives them an amazing head start in building web apps. Getting past this redundant phase of creating basic CRUD with no hassle means - they can devote their energies on the business side of things. It will not be wrong to imagine in few years this workflow will become a norm.