On the contrary some average dude would love to see something like that to happen, why? Because he knows that the price will pick up, his portfolio grows and everyone is happy. On the downside, he can be a big player, a whale than can manipulated the price in his favor. If might not be that easy to do, but having such enormous amount of Bitcoin is definitely a plus for him.
Those whales has deep pocket, and I'm sure they own their money through investments so they definitely will factor in the risk, if ever they wanted to join the fun in this market.
Yes, I would love it too,,, because so what if someone holds 25%? Does he want to dump it later on? No problem. when he dumps people will buy,,, the price will crash but it will pick up again for sure. And if he holds forever, then we are more scarce, and even 1 satoshi is worth something who knows?
Billionaires by the way if they spend $1 billion only they can buy 100,000 BTC which is not even 1% of supply?