1 BTC winner will probably take some profit, but it would be nice if he'd be able to hodl a portion of the 1 bitcoin as I believe BTC will be more valuable in the future— we will break another ATH again and again.
Depending on what the user is worth this could be very close to 100% of it and they may not want to keep all that in investments. It will be alright if they diversify and can hold about half of a Bitcoin, that will be a huge in the future. They could also think we are at the top of this cycle and want to liquidate to lock the value waiting for the dip.
It's good to see the winners coming out to show we got real people getting these prizes.