AH! Okay, my bad.
Now I get what you mean.
Making all scenes available via events is difficult, as the switches/variables were often made in a way, that both options can't exist together. A re-work of all scenes with multiple routes would be necessary for this.
It similar for resets. Since a lot of things are done during the events, and sometimes in connections to events of other characters, a reset is always a tricky thing and bound to cause issues.
A different suggestion I got earlier was to unlock CGs of the good path in the CG room when you advance the bad path, and the other way around, so that everyone can see all scenes even without having the events connected to it. This way, choosing a path means you get what events you prefer to see, but you still get all sex scenes.
At least for one character, I was thinking about implementing a choice later in her events, that allows you to switch from good path to bad or the other way around once.
In the end, I'm aware of people asking for such options, and haven't fully decide on what to do about it yet.