You are seemingly taking the adverse comments personally John. We know the supurb quality of your own work - there are ample threads on here to vouch for that and I sure there are many of your colleagues at Jaguar who are equally as particular about their work and good at what they do.
The fact is manufacturers (and their agents) go through difficult times - look at Alfa Romeo, Vauxhall, Skoda and many more - they have all been the butt of many adverse comments and went to lows at various stages because of the crap they put on the market for sale. Now look a Skoda for example - http://www.which.co.uk/news/2010/05/sko ... 10-214579/
Nissan still produce some crap cars that just don't sell and have got 'pulled' after a short life span. By and large the 350 has an enviable reputation and yes you will always get the odd rogue one but I can tell you that of the many, many cars I have had over 45 years of driving none, bar none, has been more reliable and given more satisfaction than the two 350's and 370 I have been fortunate to enjoy.