Tell me what the plane that went down in the Hudson did? Communicate, aviate, navigate. At least until the decision to go in the Hudson was made, after which there was no need to communicate, and it because Aviate-only. But while crashing (after engine failure), he had a conversation with ATC. That's more important than anything else, despite being last on the list.
Indeed. Now compare this to other recent high profile crashes: AF447 (Rio-Paris, crashed in the middle of the pacific) - no mayday. QZ8501 (Surabaya - Singapore, crashed in the java sea) - no mayday. From these recent events, I wouldn't say that not communicating before regaining control of the aircraft is unusual.
That list is for the Cessna fliers who never have, and never will fly anything else.
I am far for being an aviator. However I got this information from people who do fly airliners. Maybe they are not real pilots, maybe they have been badly trained... but in this case, they are far from being the only ones.