I didn't use "Cascade" often, but it came in handy when dealing with many web browser windows and with Explorer folders .... It's missed. Why they took it out is beyond me.
"How can we piss the most people off by making things `better' for the average user?
I know! Let's take away something that the most learned and intuitive users utilize but the people who don't do anything but browse the web don't!
....Cascade!
Oh, and while we're at it, we'll set up Windows to automatically encrypt the user's hard drive after an update, and if they don't know enough to back up the key themselves - which MOST users won't because... why would they? - they'll lose ALLLLLLLLL their saved files and information! Oh, we can SAY that it'll automatically back up the key to their Microsoft account... if they can access it after something causes their system to NEED the key for the encrypted drive... but we all know that it has a high failure rate of saving the key, and everything will be lost anyway! Bwahahahahahaahaha!!!!!"
....my take of the brainstorming session that led to Cascade missing, and the average person's data being lost because their encryption key - which they never asked for - was lost due to not being backed up to their Microsoft account. Which nobody actually USES except to log into the computer because it made them create the account when they were setting up Windows 10, from which they upgraded, and there was NOTHING telling them their hard drive was automatically encrypted for them "for their safety and security" that loses them everything, and there's "no way" that Microsoft can recover the data without that lost key...
(Can you tell it's a bit of a sore spot? I know THREE people who have lost all their data, and another who LUCKILY had just made a backup of all their data two days before their system decided the hard drive was corrupted... )
So ... To answer the question: Cascade was taken away.