Properly managing time on short notice is a difficult task, and I think a lot of presenters ended up improvising on what they ended up sharing to the class. It's hard to balance out a presentation, especially if you specifically catered your 5-minute presentation to that specific time limit, as the time reduction undoubtedly caused a lot of information to be cut or improperly conveyed in the presentation for a lot of people. It's stressful, but flexibility is definitely something needed in the industry. For what it's worth, I think our class did really well on presentations, despite the last minute changes!