I believe most, if not all wheelie duffles have the issue of the wheel casing bumping into the bats. They are also substantially heavier than non wheel duffles. This prompted me to switch to the non wheel phantom from last year - it’s a great bag, though with the curtailed season, hasn’t really been abused much yet.
Odd then that you pay a premium for a bag that is specially designed to protect your gear and that hasn't been thought of.
I had a Aero tour bag. Protection was fine but while pulling it along it would become unstable and fall over. I'm 6ft'ish but not the first impression you want to make while travelling from the car park to the oppo clubhouse.
No bag is perfect for individual needs, but you'd hope they would get the basics right.
While I don't think Kookaburra have a wheeled duffle. Nobody seems to mention them, yet they seem well put together.