The problem with S3 is that doesn't have good set pieces that develop the story and the characters.
If there were good narrative moments we would not be walking if crouching is repetitive, or if fishing is boring.
There are 3 or 4 "gameplay" interactions that I actually remember from the game, the hide and seek with the kids (that felt like an artificial gatekeep, but felt like something at least), searching for stuff (it worked the first time in the stonemason, then it felt boring, too many hotspots, too little to see), the guess mr muscles move that was a nice idea with poor execution and the Shenhua talks (that was pretty good, though I expected more, something fangmei birthday-like).
And the only narrative setpiece I can think of was the rich couple to get the VIP pass.
In S3 most of the time you are asking "about those thugs", that got 0 development through the whole game.
Compare it to SI, you had to enter the old warehouse, you had to find the right bar, learn about 3 blades, find and search the basement, find Charlie, find Chen, rescue Nozomi, get info about the mad angels/the trade, fight Guizang, get info about the mirrors, then you had all the side content, Enoki encounters, Shozo moves, the optional cutscenes, the optional moves, the Nozomi scenes, the cat scenes, there was variety, and most of it felt well integrated with the narrative (as opposed to the S3 sidequests that felt like a one off fetchquest with no narrative value and little ingame reward).