Yes, it does refer to that. Sorry.
But as far as pack goes, given the same total hole area (either lots of small holes or few large holes) the low speed performance or the shock (low piston speeds) will be unaffected (given the same oil).
As the piston speed increases, pack will become more noticeable. The threshold at which you go from "no pack" to "some pack" and then "pack" is related to a lot of things, mainly the viscosity of the fluid (related to reynolds number), the speed of the piston and the size of the holes. (massive oversimplification, but it'll do!)
So *generally speaking* low speed handling should be unaffected (as long as the total hole area and oil used is the same) as the piston speeds will probably be too low to start getting into pack territory. Unless its a bumpy track.
Lots of small bumps will probably make the car jump and hop a lot, as the shocks will pack and stop moving. Depending on the size and speed of the jumps (and how fast they make the pistons go)
FWIW, i don't use the stock pistons anymore as they weren't very good for the tracks we have, so i went to a 2/3 hole set up, with similar sized holes and a less viscous oil. (And now to MIP bypass 1 pistons to see if they work!)
Hope that helps, i'm late for a meeting now. ;-)