IMHO, computer modeling is just another tool - not the be-all and end-all of design and engineering. It should be used in conjunction with hard-earned experience and common sense. Unfortunately, I think that many designers and architects,in their zeal to produce a magazine-cover design, will push the envelope too far for real-world contractors.
This isn't a new phenomenon. Just about every architect from Palladio to F.L. Wright to Frank Gehery has produced a design that looks wonderful but weathers, wears, and functions badly.
On the other hand, engineers everywhere have produced designs that weather, wear, and function badly, and was ugly from day one.