I think I have watched too many hindi drama in the past that the holes here and there in Thai lakorn didn't bother me.
This is my opinion. I think they just can't show everything in detail...so they bring another character to bring the issue up like it was mentioned before. I see no problem and sometimes we don't need to know everything beforehand. Stories can be told and shown differently. It doesn't have to be directly from the person who did it.
What I like about this lakorn is how they choose to show very detail about day to day life in Por Date's house but fewer politics scenes.
The sequence might be confusing for some of us here. I agree.
It is just that I already understood the flow of the story from book, I don't find it hard to follow.