I feel the circumstances surrounding this accident have little, if anything, to do with the Kegworth B737 accident.
All accidents are a combination of circumstances coming together at one time. Eliminate one of those circumstances and the outcome might have been quite different.
Shutting down the "wrong" engine is a classic error on twin engine a/c and has happened on many occasions in the past.
As has been so eruditely stated above, it is often the quality of the training which has a major impact on the safety of an airline (this comment is not intended to be a critisism in this case) although the "error chain" often starts elsewhere, eg the design of vibration indicators, certification (or lack of) the engine, etc etc.
Like all accidents we should not go jumping after what we think is the "instant" solution. It is so easy to say "How an earth did they do that?" when the reality is that we might have done exactly the same in the circumstances at the time.