The difference is 95 USD vs 441 USD.
Even with a checked bag, it’s still 127 USD. From what I’ve gathered, it’s not even really a better seat other than blocking the middle seat, because they can adjust the number of business class seats as needed.

After your comment about getting some lie flat seats for that route, I looked again and I did in facet find one, but not a food flight time for my situation. I’ve also heard they can change planes last minute too.