"having [..] storage silos is a costly nightmare of managing [..] storage infrastructure"
Whereas having your data in the Cloud will be a nightmare of idle workers and frantic manglement when the link goes down for whatever reason. And you will have no way to know when it will be back, nor can you do anything about except shout on the phone.
IT has a cost. Putting data in the Cloud does not remove that cost. It does, however, remove your control over it to place it in the hands of you don't know who.
I cannot imagine anyone thinking that that is a good idea.