I would say that Canonical is more at fault in this case.
I'm frankly appalled that an essential feature such as system updates didn't have an automated test that would catch this issue immediately after uutils was integrated.
Nevermind the fact that this entire replacement of coreutils is done purely out of financial and political rather than technical reasons, and that they're willing to treat their users as guinea pigs. Despicable.
What surprises me is that the job seems rushed. Implementation is incomplete. Testing seems patchy. Things are released seemingly in a hurry, as if meeting a particular deadline was more important for the engineers or managers of a particular department than the qualify of the product as a whole.
This feels like a large corporation, in the bad sense.
I'm frankly appalled that an essential feature such as system updates didn't have an automated test that would catch this issue immediately after uutils was integrated.
Nevermind the fact that this entire replacement of coreutils is done purely out of financial and political rather than technical reasons, and that they're willing to treat their users as guinea pigs. Despicable.