I don't see either, how the £1m challenge could work in artificial, scientific circumstances. In any case, how could it be tested?
I know it's not the same thing, but my mother (a hyper sensitive type, which could sometimes make her difficult to live with) was occasionally acutely telepathic. Just 2 or 3 times over many decades she dreamt exact details of some trauma or distress in a family member thousands of miles away.
This was not a case of being wise after the event. She would be worried enough to tell us all, and later (this was pre overseas calls being a usual thing, let alone email) it would transpire that whatever it was had occurred on the night when she'd had the dream.
In one such case, involving the birth of a baby we hadn't even known was on the way, we even knew the timings, since we later had a card with time and date, and my mother had said at the time that she'd had the dream between 6.30, when she'd woken to look at the clock, and the alarm going off at 7. A quick check of time differences - baby born in Canada - proved it.
However her ability could never have been proved under lab conditions, since it only ever happened (at least that I knew of) at times of trauma or distress in someone she was close to.