The thing with the 50/200 is you have to hold over and under from zero to 200. The unique thing about zeroing at 100 is the bullet never rises above the line of sight.

Being a red dot is at its best up close to medium range all I have to remember is hold over, hold on and hold over. I would not use a red dot on a coyote past 150 yards so why sight in for a useable range of 300 that increases hold over and introduces hold under at 100?