No, you're not reading the guidelines correctly.I assume my limiting factor will be the coop then... as according to the 4sqft rule... unless I messed up. Based on run alone, the run (not the coop) can hold 312.5(absolute max) which is prob way more than I need.
You stated your run is 25 x 50 = 1250,
divided by the 10sqft per bird is 125 birds.