MM Lee's comments - Stoke a sense of unhappiness among Muslims?

In Minister Mentor Lee Kwan Yew latest book launch, he said

I would say today, we can integrate all religions and races except Islam.

I think we were progressing very nicely until the surge of Islam came and if you asked me for my observations, the other communities have easier integration — friends, intermarriages and so on.

I think the Muslims socially do not cause any trouble, but they are distinct and separate, calling on the community to be less strict on Islamic observances.

Lee Kuan Yew urges Muslims to 'be less strict' [via]