Scooby, if you are happy great...!!
I also never worry nor think about CoC. I just think about practical implications. Printing larger or cropping significantly requires sharper images. "In focus", as I am sure you are aware, is only one plane (or curve if field curvature comes into play)....everything else is some degree of out of focus. The closer you look and/or the bigger you make it, the more this can be seen and you need to adjust for it....basic common sense works fine here.
Your display images are poor vehicles to show the image, they just don't have the resolution, clarity, or quality to show the problem...not your images...the vehicle. I have lots of images that I have no embarrassment to show on my site, but would never print at 12"x18".
To a large extent, the images posted and viewed on screens are not much different from the film which was developed and printed at the corner drug store. People are elated to just be able to recognize the person or location...to remember or show there friends, then put in a "drawer". What we view as quality does not matter to them...99.9% of the time. The work i put in my pictures is much more than my wife or family would expect...but, I do it for me, so I can be proud of it...and ya know...they do appreciate it.
Many say printing is dying....and it probably is, as most things do. That does not mean stiving for quality is....we just do not have the replacement vehicle yet.
What will those just OK viewed images look like is a couple years when 4K and 8K, or larger, displays become common and the picture frame of the future. If I am still here, my printed images will convert well to the new media. Will the iPhoneography?