No need to throw toggling into the pit of obliviousness, toggling is usefull and not that buggy.
But you should either toggle an entire event or some specific actions.
Toggling a condition is seldom use.
It's only usefull if you want to rapidly compare two conditions without deleting any.
The difference between toggling a condition and an entire event, in the UI, is that when you select a condition you only see the condition outlined whereas when you select an event the entire condition+action block (+ eventually sub-events) should turn yellow.