So, Max is considered too flamboyant?
Or I'm missing your point?
The Dutch culture is also changing, but in the beginning the Dutch of course had to get used to Max, her clothing and her behavior. Currently she tops most of the popularity listings with regard to Dutch royals in the Netherlands.
People appreciate her sparkling personality (including that infectious smile), but I can imagine that especially for the older Dutch people something new and overwhelming.
Just like the other royal ladies Maxima changed (by trial and error) with regard to clothing. For example in the beginning she dressed very formal at events like Queensday. But she learned very quick and came with nice and surprising outfits. Some were a real hit!
Queen Juliana, WA's grandmother, wanted to be ordinary and have an ordinary life. Not much glamour there she was very interested in people and events. In comparison to her mother Queen Wilhelmina and her daughter Queen Beatrix, Juliana was way more accessible.
Queen Beatrix, WA's mother, had a style which has been ascribed as aloof, distant and pragmatic. In other words much more distant than Juliana. IMO Beatrix improved the glamour factor, but not that much.