True, but there are certain rules set on what's installed and what not on that (citrix) environment, depending on the company you work for and the environment you work in (resources?). Very often any kind of ad hoc analysis happens outside of that environment as they need to be only shared with specific people for example. then they start using power query, power pivot and whatnot. Which are all not available for mac/ios
Then there are all the platforms for which you don't need such an environment that you can access locally, like Sharepoint. Have you tried sharepoint for iOS?
Imagine the workflows in iOS you have to pull off, even in macOS it's already annoying.
at this point what's the use of office for iPad, watching pretty excel graphics like in their advertisements. It's pretty sad but after years of corporate experience I'm about to give on mac, for personal use I still love it.
If they can't pull it off for their own employees, no way we can pull it off as a customer.