I wouldn't say its so much the UX. The UX even on some crypto projects is just fine (see some EOS projects, apps, and dApps). The problem I see is that what incentive do end users have to use crypto/privacy/blockchain/whatever apps vs the centralized alternatives? Currently? None, because no one gives a damn about their privacy/data. I don't think it will be my generation (millennial) that picks this tech up, I think it will be later generations that have seen our missteps when it comes to digital privacy.
Keep in mind that the EOS ecosystem extends far beyond downloading a CLI client/etc. EOS Lynx[1] is a wonderful example of a decentralized wallet that has abstracted layers away to the point where it looks/feels/acts like a "regular people" iOS app
