So, if an “Instead” rule runs to its default outcome of failure, then the action it was called from will automatically end in failure, but if it ends in an “instead,” then the rule fails, but the outcome of the action will depend on the last rule that runs… which will be the last rulebook that gets invoked by the new action being tried? Something like that?
I guess that’s consistent with the differences between “instead” and “rule fails” that zarf explained here (I had to deal with some tricky aspects of this stuff here). The documentation is, erm, pretty subtle on this I find.