What Francois Gautier has written is perhaps true - perhaps not. I don't know. But what I do know is that such articles can provoke passions amongst certain sections of society which are best left untouched. Or worse, vested interests can use such articles and exhibitions, to arouse support or opposition just to further their vested interests- with often violent consequences.
Does that mean we should never talk about these issues. Ofcourse we should. But do it in manner which makes your point without arousing such passions. If the same exhibition also had an equal area devoted to Akbar and his attempts at secularism, or if the same exhibition also showed how the ties between India and Persia helped develop Indian science and maths - perhaps your motives would not be questioned and perhaps your assertions about Aurangzeb would be more convincing as they would not have to pass through the "check-his-motives" filter.
As they say about justice - not only does it need to be fair, it also should appear to be fair.