If you are Dumbing Down the UI for 'non technical' users then why have you not yet removed the large button to the 'technical' registry cleaning process?
For a few years now, regular members have been suggesting that you do this (or at least make registry backups automatic before fixing) to deter non-technical users from blindly running the reg cleaner and then coming here complaining that CCleaner has broken their machine.
Style changes to UI's happen, and there are always those who prefered the old style - and I'm also one in this case.
But you can still see that old style, if you are prepared to wear out you finger giving an extra mouse click.
I agree it would be a further improvement if the Advanced Options gave the default view options of - simple report/detailed report/file list.
PS. If you Analyze instead of/before cleaning you still see the old style details list, no matter what settings you have for the cleaning.