What a load of old tosh
Hyper-converged is just software defined storage wrapped up in a layer of BS by software vendors trying to steel some of the storage $ from the traditional hardware vendors.
It is not in my experience cheaper than a traditional SAN, some of the offerings are easier to manage than some of the traditional SAN vendors, some are not.
It is not necessarily quicker, it may remove certain bottlenecks but it adds others.
But it certainly full of hype.