I agree it would be a good idea, but I imagine individual experiences will vary hugely even within the same airline - the old YMMV will apply.

Fortunately in over half a decade years of flying for work, most irrops were dealt with on a one-to-one basis, usually as my flying patterns can be unusual enough to not end up in a crowd of affected passengers waiting for instructions/compensation/accommodation/rebooking/whatever. That said, I'm still waiting for the irrop from hell that some FlyerTalkers talk about.

Unfortunately that means I have nothing much worthwhile to say about any particular airlines that may benefit others in this thread.