ellie laing spoke out against claims of being hired for looks alone .
the australian claimed jim carroll only employed pretty , anglo-celtic girls .
the article claims sbs is having an ` attractive ' overhaul to boost ratings .
it 's believed karen middleton sbs political reporter 's departure comes after she did n't ` fit the bill '
laing said article did not take into account decade of working ` damn hard '
told daily mail australia that reaction to her letter has been supportive .