But you would you have also left the whole foreground out? The grass on each side of the photoshopped ladies is tack sharp in my panorama, taken with the now obsolete 5D Mk1.
But if I shoot a scene like yours using stitching I have to use a longer lens to capture smaller segments to match the same FoV and pixel resolution in the final file. I think the final "depth of field" between the two methods would be very similar - I vaguely recollect an article I read once which actually demonstrated they would be the same(although my 50+year old brain doesn't recollect things as well so it may have been some other point they were making). In fact, stitching is often touted as a way to decrease depth of field. I found focus stacking is really pretty simple and effective.
In that case, I would ask, what percentage of your landscapes do not lend themsleves to a stitching process? Having bought a P65+ system, I would expect that you would simply use it whenever possible and disregard the option that you might have had to get a similar, or even better result using a 5D2 and stitch for the print size required. Stitching is more work, and a single shot of equal quality to the stitched image may be preferred in terms of time saved in front of the computer. But at what expense!
Don't know. Heck, I stitch p45 files, and I"m sure I will take occasion to stitch p65 files. But plenty of what I shoot would be challenging to stitch, and taking the time to use that workflow (extra time shooting, so maybe I miss another shot from a different angle), and as you mentioned all the extra time sitting at the computer doing the stitching when I could be doing something more interesting like playing golf or shooting ...
Hey ... I've been stitching since the 1Ds ... been there, done that, and it's a lot funner to not deal with it.
Nothing wrong with stitching 5dmk2 files. Go ahead, knock yourself out. You have your level of want, need and afford, I have mine. They aren't the same, never will be and neither are right or wrong. They just are. Don't make me live in your box ... I like mine.