Technically, yes. But Sword Logic, as you mention, destroys this. Regular Hive energy can either be green or orange. Oryx's blue-black energy is reflective of the Taken, which are beings possessed by the Darkness itself, with Oryx at the helm. Oryx was the only being to have this power besides the Deep itself. Crota would have had to have damaged his father in some way in order to get the powers, as the Guardians that killed Oryx's power had that Taken energy bounced off and into the second closest thing... Malok.
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but by this theory because of the fact that we defeated the warpriest and became worthy to fight oryx, because we then killed oryx wouldnt we the guardians now possess the power that oryx did? Also even though we haven't killed as much as crota or oryx due to lore in the book of sorrows by defeating oryx we would still gain the power of the taken (the tablets) and even the power of the darkness. But for the original post yes, crota could've became as powerful as oryx, but he'd have to kill oryx the way we did to gain said power.
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We have the light, which is why I said that the Taken power bounced off us and into Malok.
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The reason we as guardians never obtained the power to take is because we didn't take the throne and gain control of the tablets of ruin