yes... there is a lot missing or wrong.
The list is likely bs, the exchange seems to have been hacked in 2018 and 500k BTC were worth a lot more than 500 million.
https://fortune.com/2018/01/31/coincheck-hack-how/
Also, where is Cryptopia and others?
Discussion
still... that's not the point.
The point is that there are A LOT of failed centralised exchanges and the number never stops growing...
If only there was an alternative to buying or, even worse, keeping bitcoins on a CEX...