3 pilots is required you f##kw!ts!!
They don't have a third pilot to spare! That is why we have to stop working g-days and checking cre messages when we don't have to. This is what you should be doing, if you aren't, then you are the f##kw!ts.
And as mentioned, there has to be more "can nots" when scheduled to perform a duty which you feel is un-safe.