If you're in a hiring position and hire anyone who uses agile as anything but a way to blend in with all the bullshit today you should quit and do something more productive with your life, like watching paint dry.
You only get to execute the nuclear option once (i.e. quit) so yes you need to understand where the line is, but there's almost always a better option.
You're also making the (bad) bet that the disaster will be small enough to not wipe out the company but big enough that management notices.