Earlier quoted context omitted.
Containerization. Similar to Project Atomic, CoreOS or RancherOS. The unfortunate side is that it's a 992MB iso in comparison to a 224MB Debian installation or even a 20MB RancherOS install. It's bloated.
Unless we're just using "bloated" as a snarl term, it has to mean "too big for what it's being used for", which is distinct from "too big for my preferred way of solving the problem". For example, most editors are larger than ed. However, ed can't support the same kinds of workflow that most other editors can. Therefore, those other editors are not bloated because ed is smaller: ed can't do the same jobs. So, is it 9…
The ISO is 992MB because it includes three different installations (micro, minimal, full).