Makers only wanted justification for PL character-
If you see they made both Sai and Virat be in her shoes and act out similarly. Obsessing over love, breaking boundaries while being married to someone else.
All sides are now seeing it and voicing that she was better- atleast execution wise they have succeeded and shown what they wanted to- PL was not wrong.
Just for audience retention they made her do some extreme things so people stay back thinking she will be exposed or get punished but they ended up ‘removing’ that act and its impact. Same with Virat.
Sai who objected them both in her marriage- doing same thing putting foot in her mouth.
Hail Virakhi!
PS: While we as viewrs can see the difference as in Sai is neither as criminal minded and obsessive as PL nor she hated and cursed Virat like he does- but its never voiced so that other two doesn’t look bad.