<Has Mayweather's retirement allowed the boxing public a more impartial view of his achievements? In his absence has he been missed and if he returns will he be received more fondly?>

Yes, Mayweather's retirement might have allowed for a more impartial view of his early successes, in the mind of the boxing public. However still, he is not overwhelmingly missed in his absence, IMO, as his retirement is somewhat perceived more as a stunt or gimmick rather than a retirement based on true sentiment, sincerity.

IB that his absence did not raise his stock in the fan department, neither has it suuddenly swayed detractors into fond receptors.

For as we all know, boxing fans are sensitive to bullsyte!