Only if you think that due diligence and actually collecting the repayments is inefficient. Someone like LendingClub will do all that for a 1% overhead with plain old fiat though if you don't want maturity transformation and deposit insurance.
I'd say it's a bug rather than a feature of the crypto ecosystem that people who sneer at 'numbers on spreadsheets' can 'earn 10% interest' if they buy enough tokens from a website whose 'institution license' page tells you what a license is but doesn't tell you which country they're headquartered in, never mind what licenses they actually hold. It's not removed the middleman so much as anonymised him and made it more likely he's running a Ponzi scheme.