It might be valid to ask that the appropriate managers consider their position, but given that this all happened 3 years ago are many of them still in situ?
Am I the only one to think that 3 years to produce the report seems a little excessive given that (thankfully) things weren't complicated by having a shredded aircraft to deal with. Thoroughness and attention to detail are commendable things, but there needs to be a degree of timeliness I would have thought?