Who should we blame for Singapore's second Covid lockdown?

Ship of fools, woodcut, 1494 Basel

Singapore returned to a state of lockdown on 8 May 2021. With all indoor sports, indoor dining, mandatory work from home, and social gathering severely restricted (and with all schools switching to home-based learning), this is a mere quarter-turn of the screw away from the complete lockdown ("Circuit Breaker") from April 2020.

Much has been made about the quality of decision-making of Singapore's Interministerial Covid Task Force in this matter.  Once again like the initial dithering and delays that led to travellers from Wuhan colonising Singapore with the Covid virus, our leaders dithered for a month while India reported its worst Covid spikes in a year. Just like in the Wuhan case, Singapore's leaders sat on their hands long after India announced the lockdown of its capital. Singapore's leaders allowed travellers from India into the country, in increasing numbers, even after the Indian government blamed the outbreak not on the record crowds at the Kumbh Mela river festival but on the "India variant" of the Covid virus.

It was only when the UK declared its travel restrictions on India that Singapore followed suit, on the same day. Yet why do Singapore's leaders blame Singaporeans for its own India variant Covid clusters and the subsequent lockdown?