Re: Storage in individual hosts is a software problem
Nutanix offers storage-only nodes.
Also, with regard to making things more complicated, HCI actually makes things LESS complicated.
In the absence of a SAN, there is no need to configure LUNs, no need to mask them, manage them, etc. Also, without LUNs, storage access is now much easier and no longer limited: In the past, if you wanted to add storage, you typically had to add an additional LUN. Or, if you were fortunate enough to be able to expand a LUN (not possible with several vendors), that would require downtime to perform.
Nutanix allows expansion of storage w/o downtime. Actually, expansion of storage is w/o configuration, too! It is literally a 2-click operation.
You should take a look at Nutanix first, and then form an opinion. It's obvious you do not understand the technology right now.