That's not an argument.
During the height of the spam craze people saw that giant spam txns with huge fees were not being distributed to pool participants as they should have been.
Ocean showed that even very early on participants were earning more in spite of filters.
Datum allows miners to process whatever txns they want. So it dramatically decentralizes mining & takes power away from pool operators.
And it does appear to be the case that legacy pools are corrupt (which really shouldn't be a surprise since more than half of them are Ant-main anyway).