They should wake up because losing Mbappe is really a big problem, it's not same like losing Neymar and Messi where they're replaceable. If PSG didn't sign any great player, their goal should be win Ligue 1 since there's a high chance they might not become a champion in this season.
Lyon have successfully sign 7 players, 4 of them are from Premier League. I wouldn't be surprised if Lyon will finish in the top 3 considering they can comeback from relegation zone to rank 6 in the last season.
That is, the loss of Messi and Neymar was not significant at all for PSG, but the loss of Mbappe was a disaster? A little strange logic, in fact, the loss of Messi was also significant, it immediately affected their attack. I don’t think they were very worried about Neymar, because they wanted to get rid of him for a long time, the salary list only improved from this, and they were not very happy with his results. Mbappe's importance was only that he was the only striker left from this great trio in the team, but his departure was expected, and PSG just need to find a replacement for him, he is not the only striker who can score goals.