Web-based CLI is yours for the scripting
PowerShell has been around for ages. Not sure how long the Office365 specific PowerShell cmdlets have been around but long enough to make this article old news if that is what it is referring to.
The sub-title of this article, "Web-based CLI is yours for the scripting", is a little misleading as I originally though that MS had built web-based terminal for PowerShell within the Office365 Admin portal. As the article mentions you really have jump through hoops to get the standard Windows OS/PowerTools working with Office365 or Exchange Online given the number of dependencies.
While PowerTools is a powerful tool for administrators there are some really basic tasks that should be achievable via the web interface/Office365 portal. My old mail server had the ability to delete a user and move their mailbox to another users mailbox via the GUI and the task would be done within a minute of committing to that action. As far as I can see trying to do the same thing on Exchange or Office 365 requires copying the mailbox using PowerTools which isn't pretty and the time it takes to move that data from one mailbox to another can be lengthy depending on the size of the mailbox.