DJ explained the reasoning for adding check-in templates to group meetings by emphasizing the benefits of having structured questions for the meeting participants. He mentioned that having templated sections within a meeting would help create uniformity and guide the conversation effectively. He noted that structured questions allow for a more organized flow during meetings, making it easier for participants to engage and respond. DJ highlighted that this feature would enhance the overall meeting experience by providing a clear framework for discussions, similar to the way check-in templates work for one-on-one meetings.