But Onana is a good choice although I think that the defense in general hasn't been doing very well. I think when you have some weak players, it also makes everyone else less confident.
Manchester united have weak spots, perhaps Erik Ten Hag is working on it. Andre Onana is absolutely a good choice for the Red Devils, his presence is significant for the team. He is new in the club, it's just a matter of time before he fully adapts with Erik Ten Hag pattern of game. Manchester United signed quite some quality players this summer, checking the likes of Mason Mount, Rasmus Højlund and Sofyan Amrabat. These new players are yet to displayed or contribute positively to the team, but the Red Devils supporters have exercised patience as they're keen on watching these players at top level.
People who's misjudged Andre Onana's goalkeeping prowess because of the number of goals he has conceded for Manchester United this season probably doesn't know much about football or just being unnecessarily sentimental with their views about the former Ajax and Inter Milan shot stopper.
The number of goals that's been conceded by Manchester United this season were all caused by United's poor defending and general play. Erik Ten Hag needs to work on the defence mechanisms of the club so they won't be conceded numerous number of goals.