That's what I think too. Fast pace and other characters are given time for their story compared to previous version, also some of the scenes are added too.
P'Pan is Poom cousin. She wrote to the guy directly and not under pretext of Poom. (Previous version, there is no connection between P Pan and Khun Chai until the very end so this is a difference) Poom's mom is related to P'Pan mum. I think some relative sort of relationship. Poom is not from rich family like them. Hence, the difference of status. I think the people detest her more on her being a poor relative depending on her rich relative. Her being more beautiful add fuel to the people who don't like her. On top of that, P Neung is the top of the cream, as in handsome and rich. All the woman would want to be with him. Who don't want to be the centre of everyone envy? That's make P Neung angry that there is this little poor lady who has the gut to tell him (NO).
P Nit mom don't like Poom because she is orphaned and poor. She is living with her rich relation. In ep 3, PNit mum already don't like her and look down on her, that's why she kept telling her children not to be friend Poom. (Previous version, she don't allow her daughter to marry P Pok until his family mentioned the dowry that they are going to give her if she allow her daughter to marry P Bok. It's all about status and money.
My thoughts and understanding of it.