Firstly. you need to ensure the credibility of site mentioned above. It's impossible to get vini since he was very loyal to the real madrid. Mbappa comes to the real madrid to play as a striker and not winger. Vini will stay in real madrid. It doesn't really matter how big your offer to vini and he will always stay at real madrid which was his dream team to play with.
I don't see it as revenge, and the article's title is too aggressive for readers like me. Madrid has barcola. who is performing good enough as mbappe's replacement. I think that PSG shall not buy him caused by it's unnecessary transfer(not priority). The club needs to efficiently spending its money.
PSG can have guirassy as a good striker who can be bought. He is cheap and good, mbappe often played as a striker. and psg needs his replacement. There was no vengeance from PSG to the real madrid as mbappe left from team under his own intention and none forced him to do that.
I'm not so sure Vinicius Jr will lose his main place at Madrid if Kylian Mbappe agrees to join Madrid next season, possibilities move Kylian Mbappe become the central forward and Vinicius Jr keep playing on his real position as left winger. Its make more completed with Real Madrid attacking line on right side will fill by Rodyro and has Mbappe on central forward position then Vinicius Jr will fill the left winger position.
In Real Madrid, Vinicius Jr has long term contract and I don't think Madrid want to sell or put him in the bench after arriving Kylian Mbappe next season.
Actually Kylian Mbappe ever played as central forward with PSG, he not always plays as left winger position exactly during Neymar still be PSG players and Mbappe most playing as target man.