The point is that the author agrees with you, except for the part where they disabled the old built-in backup functionality...
The basic options were:
1. System image backup. Backs up your fucked system with fucked files.
Oh that's it. Not very helpful.
As before, everyone just buys 3rd party backup software, sticks it on a USB stick or doesn't bother.
you don't need an app for that.
It's also the simplest solution that fits in the head space of a user.
Linux doesn't come with a backup app either. You have some tools (dump/tar/dd) from which you can build one or you buy one in (bacula, Amanda etc). Same with windows (powershell, vhd cmdlets etc).
False. Most linux distributions comes with free backup tools included in default installation.
How many versions are kept?
Is it possible to 'revert' all files or do you have to do that file by file?