The interviewer wants to hear that you are not a rule breaker, and you support the rules the company has put into place. Show that you are supportive of the leadership decisions the company makes. After all, there had to be some logic to their professional decision!
"If I could change one decision the leadership team made, it would be surrounding split shifts. I do not think that split shifts encourage a healthy work/life balance and when they incorporated them, it was tough. I still came to work, as scheduled, but I did respectfully let them know that I would be looking for work elsewhere, due to this change."