Its entirely that. A business method that relied on inflated valuations over the anticipated future market domination measured in current growth can only be possible in a market that has practically unlimited money entering the economy and it cannot survive in an environment where the money flow stops.
The dollar losing its uncontested dominance as foreign exchange currency due to the results of the sanctions and economic war started over Ukraine with almost entire global south, Asia and most importantly, Arabia moving to trade in their own currencies has killed the zero interest economy. Which stopped the money that Federal reserve and private banks were feeding into the economy. (private banks were doing it through fractional reserve lending).