I didn't make that assumption. I exampled one use of cryptographic hashes as being for password hashing. An example is not the same as saying two things are the same.
For a fast hash, being fast is always better. You were not pointing out that there are other metrics, you were directly contradicting a true statement, that BLAKE being faster makes it better.
There is no use case where you want your super-fast hash to be 50% slower.
With a hash this fast you need to get thousands or more times slower to have any benefits in those specialized use cases.