What bugs restaurant critics about wine service

To kick off my coverage of the first Wine & Culinary International Forum in Barcelona last weekend (and while I disentangle the many complex threads on food and wine pairing) here are some highly practical points which were made by a high level panel of restaurant and wine critics including Jancis Robinson, Victor de la Serna of El Mundo and Nick Lander, restaurant critic for the Financial Times and author of the recently published The Art of the Restaurateur. (My comments in italics)