This would simplify some of the conditional branches created - and would allow for odd scenarios when RULES are not met. Currently the request just stops and no tasks are active. It would be nice to (at a minimum) build in an email/task to the administration team to let them know something is wrong. In other situations, intead of having to develop complex rules - it could be used to reduce the number of rules created - if you don't meet the criteria for rules 1, 2 or 3 (for example) then simply do "this".
This has also caused us many Workflow breakage issues as you try to cover every single scenario in the Branching rules, but then something comes along that doesn't meet the rules and the the Request stops and the workflow is broken