I can't say it was anything that inspired. Basically, I'm just surmising that we'll more often want access to `executing` and `enabled` over time, than we will want the current value. The old behavior is still replicable with `-first`.

My assumption jives with the GitHub for Mac codebase, anyways, where we only read the current value in unit tests, and0 always use `RACObserve` everywhere else.