Our web installer is more safer and easier to use than Google's web installer which doesn't include important checks or information. Making a fancy wizard interface instead of having it as buttons integrated into a page is more aesthetically pleasing, but doesn't make it easier. The reason we include a bunch of information is to provide all the necessary information to work around every common issue people run into instead of them needing help.
If the web install guide only had to cover installing from macOS, ChromeOS and Android, it would be significantly simpler. Most of the complexity in the install guide is to work around issues with desktop Linux distributions.