.....All these clowns racing to push buttons and show how quick and clever they are. Just shows how dumbed down it has all become. And an indication of the generation of tech fanatics we're dealing with. No basic skills. What a shame.
But your stated solution, (below), also involves pushing (disconnect) buttons and showing how clever you are, doesn't it? 
....When it all goes pear shaped, you turn it all off - A/P, F/D, A/T (all OFF), pitch up to 15 degrees, raw data, balls to the wall under FADEC control, clean up if you're not about to impact terrain, and sort it out when you can. Who cares if you climb to FL350 in the process. I've never heard of an airplane that climbed too high and crashed.
Sounds a bit unnecessarily panicky to me - especially if you are just discontinuing an approach. And what about over-flying traffic above you?
If the Daily Mail think 1,500 fpm is "plummeting", then lucky they aren't pilots - they would find it quite difficult to descend !