How much do you think Active Directory is driving Azure's success? I picture Azure's big sales pitch as being able to call up GE or Exxon or whatever and say "

How much do you think Active Directory is driving Azure's success? I picture Azure's big sales pitch as being able to call up GE or Exxon or whatever and say "hey throw all your ancient lotus notes and other various hosted stuff onto our servers and we can sync all your AD to AAD and you're done". I can see that as being a huge thing. And once an enterprise is in, they're start using it for new things as well. I've never done any kind of enterprisey user access management before so I don't know if it's actually that easy or even if it's any different from migrating to AWS/GCP. Or if AD sucks and enterprises hate it. Would love to hear from people who have more experience there.