Ethereum has outlasted competing attempts to graft data onto a blockchain. It’s a long, long way from being accepted for general use by anyone who isn’t an enthusiast. The evaluation of a currency/company/blockchain is a measure of investor interest, little more.

You’re also misunderstanding. The problem isn’t whichever blockchain, the problem is that it’s still just a database. Someone has to be trusted to validate an entry. Whether that’s a trusted party, which defeats the point, or a consensus mechanism, which quickly becomes arbitrary/random, that the validation mechanism to interface with the ‘real world’ is the same weak point any other centralized database has. That the nodes are decentralized and cryptographically secure isn’t relevant.