Let's take just FC, but expand that to all of them for similarly unique parameters for you.
FC gets depleted by the sun every day, even on overcast days. PoolMath tells you that 4 to 7 FC is OK, but if you are testing before the daily UV loss, a 5 isn't enough to get through the day for most of the season. If you were testing in the evening, it would be OK for right then, but would not account for tomorrow's loss before you dosed again.
It also doesn't know your fill water parameters or how often you fill to predict how they'll alter things. Somebody in the desert with high CH fill water and lots of evaporation will want a lower CH because it will quickly rise on its own. While myself with lots of rain and low CH fill water would struggle to keep enough CH in there if it mattered for me. Everyone in between is, well, in between.
Until you just know what your pool needs, post up the numbers whenever you wonder, or if anything drifts out of range. We'll tell you where you want to be, specifically for you, so that you can tell poolmath where you want to be.
For now, you're sitting pretty until then. Manage the FC loss so that you remain free and clear above min at all times. If you know your nest test/dose time will be later than usual, dose accordingly so that you're still above min when you test.