My takeaway from this section is somebody likes cocaine in their cake icing and somebody has godlike willpower to stop drinking soda. Jk.
I see the term "fanservice" being tossed around here like its a dirty word. Fanservice doesnt always have to have a negative connotation. Avengers Endgame was an example of fanservice done right. Cap picking up Thor's hammer was totally fanservice, and its possibly the best cinematic moment in the last 10 years.
Personally I only find fanservice to be a negative when it seems like the story is being written by the fans. In Naruto it was an online forum theory that Tobi was Obito.
A stupid fan theory at that ,which made no sense. Then Masamoto manipulated the storyline to shoehorn that idiotic theory into the actual plot, and it destroyed the manga/anime for me. I totally tuned out. Rick and Michonne hooking up in the Walking Dead after years of fan request for that, ruins the show for me. We know damn well that isnt the case with Shenmue III. Yu Suzuki does what he wants, and you are either on board with it or not.
It seems like jealousy to decry the mild cameos that appeared in Shenmue III as fanservice. Some of us have played Shenmue for over twenty years , and seeing this series return means a lot. When I saw Ren's appearance in Shenmue III, I almost jumped out of my seat, because I'm invested in the character and he's an all time favorite. For late adopters, Ren is just some dude from Shenmue 2 who's name you can't remember. Its hard to understand for someone who just bought the PS4 Shenmue remasters last year. Shenmue is a series that has a long tail. I feel like Shenmue III will get its cult status maybe ten years from now.
As for the question, happy/sad about Shenmue III's existence? Look, don't take all the complaints, soapbox preaching seriously. Gamer angst is a thing as old as teenage rebellion. I know a lot of gamers who rag on Destiny , Destiny 2 and Bungie constantly, but log on every single day and have 5X hours played than I do, and Ive been on 1500 hours . Its just an in thing for gamers to be angsty and bemoan games, especially second life games like Destiny or Shenmue .