BitcoinSV has much bigger blocks than Bitcoin, which is probably why this idea is possible.
While the same idea could be applied for the original Bitcoin network, that is far more popular, it would be highly impractical as blocks are smaller and transaction costs are higher.
I don't want to start another big/small blocks debate but if this idea gets popular, I doubt there will be many nodes that want to host the insane amount of data that will be accumulated, and the incentives for hosting a full node cost-effectively is the main reason why Bitcoin blocks are small.
I also sense a malicious intention with the website not making any reference to the fact that this is not the BTC network that 99.9% of visitors associate with the word Bitcoin.