If it was his only option I would agree with you 100% but as the things stand now he will be able to choose his next club. I seriously doubt Man Utd will be a best fit for him. If I was in his place I would chose a top tier club from good league, a club that will fight for CL spot, play attacking football and almost guarantee a first team spot. Why not their sister club RB Leipzig for instance? Great league and much less pressure. Then after 2 seasons of high level football maybe it would be time to go for real big hitters. I include Man Utd in this group because of their history and fan expectations even tough they are far away from that status at the moment.