I think we can explain what was wrong in that speech and explain how it misrepresents hinduism/buddhism etc, even add how it caused hurt to Hindus/Buddhists - via press releases/statements;
But I do not believe in requesting or asking or pressuring someone to apologise.
Having read through multiple religious texts including various branches in Hinduism, christianity, Islam, Jainism etc, the only acceptable response to criticism of religion I found was in the Buddhist Brahmajala sutta:
Start of Quote
“Mendicants, if others criticize me, the teaching, or the Saṅgha, don’t make yourselves resentful, bitter, and exasperated. You’ll get angry and upset, which would be an obstacle for you alone. If others were to criticize me, the teaching, or the Saṅgha, and you got angry and upset, would you be able to understand whether they spoke well or poorly?”
“If others criticize me, the teaching, or the Saṅgha, you should explain that what is untrue is in fact untrue: ‘This is why that’s untrue, this is why that’s false. There’s no such thing in us, it’s not found among us.’
Going by history and even current affairs, where religious fundamentalists in India(and elsewhere) are asserting themselves, requesting someone to apologise for criticising religion is a slippery slope - slope ending in anti-blasphemy laws. That’s how I feel anyway…
And I would defend everyones right to free expression, however offensive another may find it, as long as it is not a speech provoking immediate violence.
Too often, “causing offence to religious sentiments” has been the argument to oppress minority rights in the name of religion/criticism of evil practices in religion.