I’ve read the thread. It was my polite way of saying you are lazy but I apparently have a little more tact than you have. 340 lbs is a rather extreme example… but not what we are talking about here. (the thread is called Old Working Athletes)
My point is that we tend to train in our comfort zones. Slimmer athletes tend to “like” doing 300’s and heavier athletes can’t fathom running that far. You can split it up into 100’s and 200’s if it make you feel better but it is still the same volume of tempo.