I was going to give a very long answer to @Celtic_Rune, but I see @Vox has made an excellent post with many good points!
Therefor, there’s only a few things I wanted to add, if you guys don’t mind 
I think the comparisons between WH and any other HG that has a heavy focus on romance are very unnecessary and extremely innacurate. That something has romance, doesn’t mean that still belongs to a similar genre. Like historic movies, for example! You can have historic movies based on many different time periods, and they can be more humorous, more dramatic, etc etc, same thing applies to romance games 
What I want to get to with that example, is to point out that not all genres need to have the same weight in the plot and the decisions on them. I love WH! A lot, at that! Is a very lovely game! And I think it did a very good job at being what it is! Which is a series of more easy going emotions and plot! When you have a game like WH, giving a looooot of choices becomes much more simpler, I think, because said choices have no weight at all on the plot, but when you have a game like TSSW in which we are literally! Deciding the destiny of the world, you can’t give as much freedom and make it as meaninfull (unless you are a very crazy author and want to give lots of branches, I guess hehe).
In my humble opinion, I think that at the end, this really fall into personal tastes :). I really like more set MC’s because I feel like it makes their story much more powerful than if they are a blank character left to headcanon. Morgan made the decision of making this character a more set one, and is a decision I am very grateful of 
As a last note, I really wish there were more games with set MCs that give you a strong sense of who they are. And I know comparisions are not good, so excuse me for doing one more
, but another game that has a very set MC Is FH, and I think Sidestep is amazing!
And now, to take it back to TSSW!!! 
I am very intrigues about our intuition :O, I did a run having it as high as possible and it gives you some very interesting insight on bits of info I totally missed before!! I can’t wait to see more about it, so I think I’m going to be doing more runs on different routes and see what more bits of info I find!