This is true but it should be important to note that this statistics is not just confined to crypto. 90% of ALL start-ups fail as we live in an incredibly competitive world. The crypto market in general however will grow, money will flood into the successful ones. I'm pinning my hopes on Plutus, they have a strong team, a live beta product, have been around for three years (all the signs of a long-term successful product).
Plutus essentially is a payments platform that lets you spend in crypto anywhere that ordinary fiat cards are accepted. They achieve this by converting only the amount of crypto necessary to make the payment into spendable fiat which then goes to the merchant, its a very clever idea and would make cryptocurrencies like Bitcoin useable as an actual currency, which in my eyes would revolutionize the sector.