As someone who works in a large company which has rolled out AI assistants for Teams I disagree.
Ticking off things live - it may sound like a nothing burger, but it's a god send for keeping meetings on track and on schedule without having to depend on how good the organiser is. Yes if you're good at hosting meetings it will make no difference. Most people are not, this replaces their incompetence.
Post meeting summaries are great - again it can't replace a human who does it in terms of accuracy, but... unless the meeting gets minuted for legal purposes by a dedicated scribe this simply isn't done. Most meetings end up being a waste with no follow up, with actions missed or no suitable summaries. I used to pride myself on doing the above, but even I would occasionally miss something in a summary and get an email back from a participant saying "thanks, but you missed item X". Copilot is actually surprisingly good at this now (it was a clusterfuck as little as 6 months ago as to what it would deem important).
So yeah, if you run very effective meetings, this is of no help. But most meetings are not very effective meetings. I fucking hate how AI has been shoved down our throats, but this is one area where I think the tools out there already are effective and of benefit.
On the flip side next time CoPilot offers to "clean my data" in excel I'm going to put my fist through the laptop screen.