You can call it whatever you want, as long as it equals 1/2 it’s the same number.
So yes, multiplying by 2/2 to make it more intuitively obvious is perfectly valid and a good way to think about it. Most arithmetic tricks are ultimately multiplying by 1 or adding 0 just to make the problem easier to handle.
Planck scale units aren’t known or typically assumed to be minimum units. They’re just the units that come out of combining some fundamental constants and are thought to represent a scale where the effects of quantum gravity have too much effect to be ignored. They just represent a theoretical limit to the validity of our current models.
Human knowledge will continue to push these boundaries as long as humans still exist, but it’s arrogant to think our current human limitation is a universal limitation.