I would agree with this sentiment. Whether it's "better" or not is still subjective, but the integration of theming at VB is something all water parks should aspire to. At least at the high tier resort destinations that Uni and WDW market themselves to be. For our family, VB has the better F&B, rides, and the VQ system (Tapu Tapu) is great to avoid the feeling of being in line all day. It's aesthetically a beautiful park, and the pathways don't meander like Disney's, providing more reprieve for bare feet on hot concrete.
All of that said, if I were otherwise staying in the Disney bubble without a rental car, I don't know that I'd Uber over to VB over BB or TL. When staying at Disney, water parks are a nice thing to do. VB is an integral part of enjoying a UOR vacation.
Just my $0.02.