That's part of it, but it's still missing the issue that it's not about equal risks, it's about equal treatment.
By "risk" I meant to imply adventure. I should have been more clear. I don't mean both Batman and Black Canary need to be chained up beneath a pendulum so he can escape and save her; I mean if Batman can have a story where he escapes from being chained beneath a pendulum, I darn well expect Canary to be able to do the same.