No and not just for perspective control. There are digital stabilization functions on some camera which have made hardware stabilization no less advantageous. The same is true with digitally rotating an image as oppose to taking it level or having hardware level the sensor for you.
It is great that these things can be done digitally but they will always produce inferior output. Losing resolution and having to generate pixels means that information has to be regenerated from an already digital version.
The dilemma facing people continues to be how much the advantage is worth to them. A Tilt-Shift lens is an expensive item for the vast majority of people and if they can get the same effect with lower quality using $99 software, they may prefer that approach. A $6 bubble level to ensure shots are level is much easier to be worth it. Digital stabilization saves a few dollars per camera which to some makes enough difference in affordability.
Lastly, think about Nikon offering a D800 and D800E for $400 USD difference. The output resolution advantage is far smaller than digital versus mechanical perspective control, yet the more expensive D800E without Anti-Alias filter keeps selling because it is worth it to some people. I also strongly suspect the cost of producing either camera is almost exactly the same, so manufacturers also know when the difference is worth it.