I disliked Devin as soon as he was introduced. I didn't like disliking him -- it felt like I was being told to dislike him because he was afraid -- but it wasn't quite a caricature, so I ignored it as best as I could. But I liked it even less later on, when it turned out that he was a redshirt.
Rob's Rule on Redshirts: make their loss significant.
The only reason I'm posting AGAIN about him is because I think the story has a lot of promise, and can be improved significantly with better attention to (for example) the victim.
EXAMPLE. This is NOT the story, however the thought just occurred to me. Supposing the CAPTAIN was the one disintegrated, and Devin happened to be the backup leader and had to step up? We're invested in the captain, and it would hit the reader hard. That makes a story riveting. WHAT THE HECK will they DO NOW? It wouldn't work unless Devin was a capable, useful, flawed and interesting person. On the other hand, suppose he was also a greedy and sneaky bastard. The author has then just set up the rest of the team for a second source of peril: Devin will be thinking of ways to off the rest of the crew, and the Ancient Thingamabob is already a source of unknown danger. The plot gets complicated.
Hmmm. Now I've got the urge to write a story that goes south in that way. Lemme think about that...