The whole point is that the person who invested in bitcoin in 2010 would not have been able to hold it to this day. The temptation to sell and take profit is too great. Therefore, it seems to me that there is not a single person who still holds bitcoin since 2010.
I kinda agree on this one because you have a point, for what I believed there's no can pull off that thing none other than satoshi himself. First of all, you never know that Bitcoin would grow this much because if you do then perhaps there's a high chance you could pull this off. Usually, if you saw your invested money grows 10x or more you will be tempted to sell because you don't even know if this will continue to increase or not so you will definitely sell. However, now is different because everyone knows the capabilities of Bitcoin and it becoming mainstream perhaps this will push for some individual to hold their BTC for long time.