I think the claim that was being made was that no prime minister has completed a term in office.(5 years) For your first bullet, the prime minister was kicked

I think the claim that was being made was that no prime minister has completed a term in office.(5 years) For your first bullet, the prime minister was kicked out after just over 4 years. For your second bullet, the prime minister was kicked out after just over 4 years. For the third bullet, Imran Khan didn't even last 4 years.