I think there’s also an aspect of accountability-washing: when regular 911 makes mistakes, managers and politicians get hauled into the spotlight to explain the failure (my city has that now due to the outgoing mayor’s decision to put an unqualified crony in charge). I will bet that the first time this fails badly it’ll be blame shifting and assurances that some huge tech company has fixed the problem and it’ll never happen again, with as little talk about oversight responsibility as they can get away with.