...
The only opportunity to hook into these rules to provide a dummy ECI would be to react to the owner:login_attempt_failed event, but then the another other ruleset would have to do all of the work for the second purpose, including scheduling and providing the cleanup of the temporary channel. Besides that, the new temporary channel wouldn't be able to use the policy mentioned in line 11, because it's kept in an entity variable of the account management ruleset (so it would have to be provided and obtained through a module reference). It quickly gets very complicated, and in the interest of DRY, this isn't really the way to go.
...