Pete, it's more accurate to say it's my *perception* that VW is being designed for the McMansion market. How it's *actually* being developed/tested and for who I don't really know because I'm not privy to that process.
What I do know is that if I try to use the parametric objects and BIM tools when producing my documents these tools consistently seem to me as if they've been designed by someone who tests them by drawing a prairie house situated in the Mississippi River valley, with four sides and a pitched roof. Whenever you stray too far from four-walls-and-a-pitched-roof you're stuffed because as soon as a parametric object doesn't do what you need it to do you can't go any further with that approach. You end up with three options:
1. Ditch the modelling process
2. Model manually
3. Ditch BIM and use your sub-standard parametric-based model as a reference for producing the documents you need
The last option is what I tend to do. I'd soon get fired if I tried the 2nd option and I find the modelling process to valuable to take the 1st option.
A few examples off the top of my head would be Window PIO sills, Nth American naming conventions throughout PIOs, no cavity closers in the Window PIO, the Roof and Dormer tools, the Space tool data fields, Stair PIO limitations with regard to multi-storey buildings, etc. I'll think about it harder and post more if you're not convinced.