They're usually busy doing other things.
Ding ding ding.
At any rate: it's very funny that DNSSEC took 1.1.1.1 down, but this bug can't honestly be pinned on DNSSEC itself.
If the DNSSEC didn't add new unnecessary complexity to an otherwise working system, there would be no bug, and no stale data.
but yea, repeatedly running into a wall of ignorance encourages shifting to "busy doing other things"
They're usually busy doing other things.