Hated to see this when it affected Exchange on-premises for what seemed like ages. Now we have a similar issue occurring with PowerShell in Exchange Online. If, for some reason, you need to check the Get-Help of a cmdlet in Exchange Online, you will get a grand ol’ error message like this:
While this is non-functional, if you need information on the cmdlets, there is the new GitHub PowerShell reference pages located HERE. I would use that until its fixed.