[FoomFries]

Indeed, and this is why they continue to downscale the number of people doing such tasks.

[noisy_boy]

They need 250 more as per the article (scroll to end).

[mkl]

Just before the end is the likely reason for that: "70 hours a week".

This is the last such facility, after all the others have been closed, so needing more people is not incompatible with the fact that they've scaled down overall.