I suppose it might have it's uses, but I have no desire to find out what they are. I survived clippy by deactivating the damn thing as soon as it appeared, and doing the same for an awful lot of domestic and small business users. If this fresh hell doesn't have an off switch that is both easy to find and, crucially, stays off, even after updates, I foresee anyone who can jumping ship for libre office.
As I've said in other comments, these things are tools, to be used with an understanding that the material they produce might be utter cobblers. Used with that in mind, and enough knowledge to ensure you can spot errors, they can be handy time savers. But wedging them into every nook and cranny of the most widely used productivity tools on the planet isn't just asking for trouble, it's begging, pleading and demanding trouble.
The common or garden office drone cannot be expected to contend with that - many of them have enough trouble just using the tools they have, without foisting this kind of uncertainty upon them. Expecting them to double check what the fancy new thing tells them is both unfair and unreasonable - they won't do it, won't realise that they need to, and likely wouldn't have time to do it anyway. They wouldn't be asking the thing to prep them for a meeting if they had time to do it themselves!
Of course, I gather that this impending chaos is based on GPT4, and we haven't really seen what it's capable of yet. It might be much better than the version that proclaimed the demise of the unfortunate vulture mentioned in the article, and we might be being terribly unfair in prejudging the likely outcome. I doubt it, but we might.
But that doesn't really matter. The sheer scale of the potential for cockups is enormous, Microsoft don't exactly have a reputation for reliability, and I feel that a healthy dose of scepticism is absolutely essential here. Be afraid, be very afraid.