Yes, the Nomad Pearl will cover a lot more boards than a dull Onyx Vibe, but it won't handle more oil, when polished.
Unfortunately these days of resin and resin-based particle balls are very different from urethane balls, where the more a ball hooked, the more oil it handled. Today a mild ball, like the Freeze, can hook a lot more than an oiler, like the Bounty Hunter, on lighter oil lanes. Some resin pearls can cover all 39/40 boards and more when thrown by the right person on the right oil pattern.
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"None are so blind as those who will not see."