I'm not sure it'd be any better.
As is I can see a scenario where this was 'just' Waltz fat fingering and nobody was really monitoring these areas prior because it wasn't seen as a serious communication channel (didn't believe they could be this incompetent). Possible to bounce back from (starting by cleaning house at the top).
The alternative of a random well connected journalist knowing about it and being able to social engineer his way in or being gifted access by someone with access to Waltzs account, then 100% China/etc had all the relevant info as well and our top levels of defense are completely compromised to a point I don't think we could come back from.