First of all, great review haven't played this series yet, but maybe I will try it.

Now to your comment:

I'm the kind of guy that believes that when the combat is not so engaging or the game isn't challenging me in every chance that it takes, i'm being misled or i'm just wasting a bit of my time... I know the artstyle is inspired by ghibli but this is still a Videogame o:

That's a very sad opinion, which could miss a lot. Games don't always have to be about outstanding gameplay. Of course, a game that combines both in an excellent way, is also a game that gets top ratings.

But why can't a game be like an interactive movie? In a good movie, you don't say you wasted your time because the gameplay wasn't good.

To name a few examples:

Journey:
Almost no gameplay, but a wonderful experience. Despite the almost non-existent gameplay, a similar experience within a film would not have been so impressive by far.

Especially a lot of indie games work this way, although they have hardly any game mechanics worth mentioning.(The Stanley parable, Her Story, also really good examples)

Fahrenheit, Beyond to Souls, Heavy Rain:
What can these games do? Except Quicktime events not much. However, they are absolutely ready for film and tell an emotionally gripping story, which, however, is transported much better by the greater immersion.

Please don't feel offended, I just might have wanted to give you a different view on things.