sure "inaction" is subjective and that's how modi got off the hook, or he would be tried in an Indian court or by an Inquiry commission ... just like those congress MPs like Tytler and Sajjan kumar were.
Modi is not a Hindu leader. Don't mistake him for a Hindu leader, he is just a polititian and a leader of BJP. He does not represent the Hindus of India and BJP is not a Hindu organisation. So, refusal of visa to Modi, is not an insult to Hinduism in any way whatsoever.