Matt Whiting wrote:

And this is a surprise? Did they think an airplane that size would have
the wake turbulence of a 737?

Not a 737, but Airbus was claiming it would be comparable to a 747, which is
a "heavy" aircraft. If you read the article, you might have noted that

"An Airbus A380 marketing brochure in 2003, for example, said: "there is
no need to introduce any changes in separation standards" for the A380
because the aircraft's wake "is similar to that of the 747-400.""