He is still very young, 23 years old and a potential crack in the right circumstances.
Ten Hag is still having trouble finding a suitable striker to add strength to his team's attack line. Joao Felix is still just a rumor, no official agreement has occurred between Man United and Atletico. As well as trying to get Joao Felix, The Times reports Manchester United are considering Milan Olivier Giroud. Giroud will be used as a temporary option if Man United fails to get another striker in the transfer market.
Joao is still quite good when compared to Giroud now he has a good vision of playing on the other hand he also has a fairly young age so instead of considering Giroud it's better to focus on Joao.