I don't think they suddenly started using ETH less, just a turnover. The growth of commissions shows that projects of the Ethereum network have become in great demand and this is in no way similar to what you write. At the expense of other platforms that they can take the place of ETH, well, let them try, because this conversation has been going on for several years, but Ethereum, as a leader, remains so. You need to understand that Ethereum is not just a cryptocurrency, it is a whole ecosystem with a developed infrastructure, as well as a great demand.