VVOLs and VASA are important standards for communicating capabilities between array and management software. The key here is to combine easy with obvious. The last thing we need to have happen is that VVOLs make it even easier to make so many LUNs you completely forget when you're hitting the arbitrary LUN limit of your array.
How the information is presented in the UI and whether or nor provisioning procedures/scripts/orchestration/automation are reworked to take advantage not only of the new ease of use, but the new information on limits is going to determine viability within a given organization.