… and even if they were notified, there wouldn’t be much they could do about it because they don’t have push access to the upstream package.
OTOH, when a build for an abandoned package fails in one of the distros it’s already released for, we already have the same problem.
I don’t really have an opinion one way or the other. Abandoned packages suck, but drive-by releases without willing to commit to maintaining a package are hardly going to fix the problem.