I do agree. But Oleg doesn't often shoot Provia at box speed. The trick to saturating the normally subdued Provia is to underexpose it, and it works beautifully for many of ON's works.
I don't usually think of Provia as subdued, either, but nonetheless I'm curious about underexposing it. I used to routinely underexpose Kodachrome, e.g., K64 I shot at an EV of ISO 80. So what would you rate Provia 100 at? 125? 160?