If I understood well, I think it will be very very difficult for Lappi to be the WRC2 winner this year. He has 9 points gap to Nasser that means he cannot relies on himself winning his remaining round. Al Attyah will likely choose Wales as his last round, as Spain asphalt is not his favourite surface, and it will be enough a second place to be ahaed of Esapekka.
Protasov and even Ketomaa have more chances than Lappi at the moment, if one of them will win Spain then it will be enough for them to stay ahaed of Nasser in Wales.
Nice situation