It is fixed, but what i do hope is that the wallet wont send any private key to their app. Is using the usb or bluetooth the same thing in terms of security? Or if the app/wallet has a bug it wont matter anyway?
I would always go for the wired connection instead of Bluetooth. Bluetooth connection can in theory be intercepted, but that's really not something the average person should worry about, unless someone targets you personally. The attacker would have to be close to you. 5, 10, 50 meters... It all depends on the type of Bluetooth device and connection. You are out of luck if the wallet has other vulnerabilities besides the faulty secure element implementation.