The bank angle wouldn't be the problem. It would be more the change in roll rate. People don't have problems when the elevator is in constant motion. It's the s

The bank angle wouldn't be the problem. It would be more the change in roll rate. People don't have problems when the elevator is in constant motion. It's the start and stop that cause the feelings. It probably wouldn't be all that hard to build some sort of rate of rate of roll limit into the flight control. Or just have the pilot smoothly move the stick to the desired rate of roll rather than snapping it to the desired position. They are severely limited in what they can do with pitch when there are passengers. This would be a relatively minor limit to what they can do with roll.