The fees are low, while we are not there. As soon as number of transaction will grow, it will end as the ETH.
We already did the migration from BTC to ETH for exact this reason. But unlike Counterparty (it’s token network on BTC), the ETH has much more wide community. And much more than on Cardano (or whatever). The migration is painful, it takes YEARS:
And after all we again have this problem with fee.
But we already have a solution - L2 payouts via zkSync and no migration needed.