I don't think that the folks at project cars were necessarily lying, at least not blatantly, it's more just a case of time making fools of us all. At the time the comments were made in the op they may well have been completely honest, at the time the wii u version may well have been a higher priority over the ps3 and 360 versions, but that was before the ps4 and xb1 launch. Really, look at the change in tone just in the second comment, it went from, "Holy shit the wii u version is fucking insane," to, "well, it can still deliver the core experience, I guess," just after new hardware hit the shelves. It was just bad timing.
One thing that never changed is that project cars, at its core, is more of a pc benchmark game than anything, console versions were always secondary at best.