I think there is a clear difference between pitching 2 innings at a time, multiple times a week than there is 1 inning at a time, multiple times a week.
There is a reason relief pitchers are used the way they are, and that 2 inning relievers are more the exception, not the rule.
But you don't bother to read or interpret correctly my posts anyways, so I'm not sure why I bother!