I agree with almost everything you say, but I'd have to disagree that the quality is up. In the first 13 years, there were complex presentations with winemakers who let you pipette and mix raw wines from the barrel, they would bring in unreleased products, they would have as many as 6 wines to try, and they would contrast "reserve" vs. "regular" products or several years of the same wine. I remember experiments peeling grapes and tasting the peels vs. the pulp. I remember eating lemons, jelly beans, etc. before tasting wines to see how the taste buds were affected. Back then the retail prices of the wines served were up to $120.
The current wine tastings have become standardized with 3 wines, mostly cheaper ones, and they do nothing you wouldn't expect to do in your local wine shop......for free or for cheap. Disney used to be the place where you could do a wine tasting that was unique and special. Has anyone been to a paid event with any of the features I mentioned above?