It is absolutely not. It is exactly the same from the value judgments of the ETH project, specifically "Code is Law". The DAO specifically went as far as endorsing that the software execution takes precedence over the reading of the English functionality spec.
The ETH system, but the core values of ETH, should do exactly what your arb contract specifies, and exactly what the DAO contracts specify, even and especially if that's not what the writer originally intended. To selectively reneg on that principle would be wrong for the same reason as doing it on an arb contract.