What I am saying is you said they were poor throws and then you go with they shouldn't have to think they need to be perfect.
They don't need to be perfect they just need to get up to decent.
Are we seeing Mountcastle having balls hit him dead in the middle of the glove and him not come up with it like happened with Davis?
Yes, a good first baseman should be able to salvage a decent percentage of poor throws but I don't think expecting mediocrity from the other fielders is out of line.