Hamann told Wette.de: "I don't think his surname did him any harm. It probably only hurt Borussia Dortmund because it would've led to a bigger transfer fee.
"Jude was a bit younger when he joined and cost a bit less, we will just have to wait and see how it works out.
"What I will say is that the Championship is a tough league. To make your mark there as a teenager you have to be very tough, that will do him well in the Bundesliga.
"In terms of Dortmund, Jadon Sancho, Jamie Gittens, Jude, Erling Haaland and so many others have improved leaps and bounds at the club, it’s a great place for Jobe to develop.
"They handle young players so well and I think it’s a great move all round. There is a hefty price tag and expectations and he will be compared to his brother even though play in slightly different positions - but the fans are very excited."