I'd say this is a problem of a really new tech, with the advanced attack vectors and methodologies we have nowadays. Thankfully, other cryptos (such as Cardano

I'd say this is a problem of a really new tech, with the advanced attack vectors and methodologies we have nowadays. Thankfully, other cryptos (such as Cardano) are building their smart contract platform with correctness/security in mind (compiler checks and so on), so we might see less problems like this.