Because it's easier to touch empty space and adjust fingers. Back when I worked on Thinkpad, I really hated these keys, whenever I accidentally pressed them. I don't say you're wrong, just it's a matter of taste.
It's the same with mechanical keyboards - I can't use these compact 75% keyboards where arrows/Pg Up/Pg Down/Home/End are flush with other keys; but a bit "exploded" layout, with just a bit of space between arrows and the right column keys is perfectly ok with me
What I really hate is that combination of full size/half size arrows on modern laptops, put there just because some designer hate empty space.
It's the same with mechanical keyboards - I can't use these compact 75% keyboards where arrows/Pg Up/Pg Down/Home/End are flush with other keys; but a bit "exploded" layout, with just a bit of space between arrows and the right column keys is perfectly ok with me
What I really hate is that combination of full size/half size arrows on modern laptops, put there just because some designer hate empty space.