Some Canadian parallels:

Modi may get a 2nd term due to weak opposition. Chretien won elections based on a divided right.

Congress, the "natural governing party" is in disarray. So were the Liberals during much of the Harper years.

Muslims were killed in India. Muslims were killed in Canada.

The article does not assert that Modi's dominance is bad for democracy, and the facts listed have Canadian parallels that do not suggest anything seriously wrong.