I'm not crazy about Seymour but for what his storyline promises, it's exactly what it delivered. Wealthy older man lusting after a hot young model, and getting her to succumb slowly. Not fantastic but I wouldn't call it disappointing.
What I'm really not a fan of however is more returning characters from GGGB, messing even more with canon. Iris has already been confirmed to be a pornstar and now Arthur is confirmed to be rich. If you're gonna bring back characters from the first game, you should bring the ones that had smaller roles and were not fully developed (Natasha, Danny, Marcel, Rosa). Jess is an exception because not only does she fit well in the story but also has both her versions in the game, depending on the player's choices. Jack can't be accounted for because of how short his cameo is. There are so many new interesting characters in this game with potential to be explored like Eli, Victor, Gillian, Agnes, that I feel like wasting time writing returning characters into the story (who most people didn't ask for, mind you) just feels like going out of your way to make an already convoluted development timeline even more complicated.
Whatever, at least the story progressed in this update. Some of them in the past felt pretty pointless with a couple sex scenes to keep the player's attention and made the story go nowhere.