Yes, there really was a missed opportunity when it came to Pok. I could see why he wasn't very well fleshed out in Gowron's story, but once the character had appeared on DS9, I assumed we would learn more about him or see things from his perspective. Instead, the novel just ends. Very disappointing.The Klingon novelization suffered from being too literal an adaptation of the game, with a nominally "main" character who was just an empty void for the player to insert oneself into, occasionally asked to make a token decision but otherwise a total non-entity. It read more like a hint book for the game than a story in its own right. Diane Carey's Starfleet Academy game novelization did better by building more of an original story around the events of the game.
The only redeeming feature for me is that it shows Gowron in a different light to what was represented in TNG and DS9. I would be interested in reading any other stories that predominantly feature Gowron if anyone knows if any. I'll also be sure to check out the novelization of Starfleet Academy to see how a CD-ROM novelization should be done.