I don't really see isolated to mean completely isolated, more along the lines of "it's a couple miles into town and ten acres between me and the neighbors" but fair enough.
Your personal feeling of a definition of a word does not align with the reality of the actual definition of the word "isolated", so you can think what you want, just realize that it's wrong.
I know, and you can manually cycle a round by pulling the bolt back and releasing to get the same effect on a modern semi-auto action.
You're arguing it's cooler to crank start your Ford Model T at the beginning of a drag race against other modern race cars nearby becuase it has legacy. That's really fucking dumb. Buy a modern weapon.
It's not nearly the same effect. Additionally, a pump action shotgun is not a Model T Ford. I can pop two clays at the skeet range with my pump, just as easily as I can with my over-under. I shot a Benelli auto a few weeks ago at the range and felt that my Mossberg pump was more accurate. That could just be due to my familiarity with it, but the point stands. A pump action shotgun is a fine weapon. Sure, it's not as quick as a semi-auto in a combat situation, but I highly doubt that's going to matter for 99.9% of legal gun owners.