What are you actually criticizing? He's winning a lot of games while playing all-out attacking football with a mix of players that are:
- years away from their primes (Pedri, Yamal, Cubaris: 23, 18, 18 years old)
- way past their primes (Lewa)
- doubtful in general quality (Koundé, Araujo, Christensen)
- nothing more than solid with glimpses here and there but also lacking in a lot of aspects (De Jong, Ferran, Olmo).
With only one guy who is in his absolute prime and delivering high quality majority of the time (Raphinha).
Winning domestic double with entertaining football is the most one can expect, based on RM's very own struggles.
Winning CL is possible depending on form and luck but can't be expected with this squad at all.
Honestly, after Messi era and the Griezmann, Coutinho, Démbéle, Gomes disasterclasses I would have never expected that this club will compete again at the very top so soon. Playing Europa League against likes of Man United and Frankfurt with limp sideway zombie tiki-taka year after year was a real possibility.
So the critics better be trolling for entertainment purposes or explain themselves what their expecations are.