As intended.
It's been clear for some time now that this was their goal - it's why they've systematically destroyed infrastructure and especially hospitals, why they drove aid organizations out and shut down all the border crossings, why they packed the Palestinians into the smallest possible space and why they actively prevent aid from entering.
They want to kill as many Palestinians as possible while still hiding behind the illusion that they're anything other than profoundly evil, so instead of just engaging in the mass executions they'd undoubtedly prefer given the opportunity, they're relying on starvation and disease to do their killing for them.
Deliberately, and with malice aforethought.