Because you still need to give strength to even any European hesitation and division of siding completely with the Anglos. Right now, the ukraine war splits the EU with recessions reported in almost every EU country where some states are on the verge of civil revolt. The Anglos want a pan western white mans crusade against China, why give them that chance? At least the REE curbs target military production so even if they’re aiming to rearm with Chinese components, it’ll be incredibly difficult not to mention provide fuel to Chinese intel to see where the REE is going. The fact that they’re trying to get China to join a G7 event is aimed at co-opting China like a pissant India as well as trying to split China from the global south by portraying China as joining with the west.