Ok, maybe he didn't specify how all the statues, doors, windows and other embellishments should look like, but the basic structure and shape (the three portals and the 18 spires which also determine how the support columns in the interior of the church are placed) is the same as in Gaudí's original plans.

Buzzword bingo isn't restricted to software. The statement just says "Gaudi was a great architect". But it sounds more impressive to talk about "posthumous collaboration", especially if you don't analyze it.

Sometimes people say things indirectly.

In this case what they are saying is that Gaudi’s design sense is so unique and iconoclastic that it’s essentially impossible to mix it with other styles of design.

The original statement still makes sense, though, if you correctly interpret it as critique and warning.

> Sagrada Familia isn't a 100% implementation of the original vision

That's what makes it more interesting and fascinating.