The reason is: people are losing hope with crypto. They might think that when they use the dapp and make an investment of $100 of using it. The value might drop to 80% again losing the huge value from its original investment.
https://bitcoinist.com/ethereum-eth-dapps-0-volume/There are now 1375 live ETH dApps.
86% of them had 0 users today.
93% of them had 0 tx volume today.
Across all platforms there are now 1828 live dApps.
77% of them had 0 users today.
85% of them had 0 tx volume today.