To put into perspective how you’re trying to allocate the Arcs:
Early: The Dead Zone, Saiyan, World’s Strongest, Tree of Might, and Lord Slug Sagas. (5)
Mid: Namek/Frieza, Garlic Jr., Cooler’s Revenge, Android, Return of Cooler. and Super Android 13 Sagas. (6-7)
End: Broly the Legendary Super Saiyan, Plan to Eradicate the Saiyans, Cell, Bojack Unbound, Second Coming, Bio-Broly, Fusion Reborn, Buu, and Wrath of Dragon Sagas. (10.)
We’re trying to divide twenty arcs worth of material. Trying to match it exactly puts us in a bad spot. It’s much more efficient to divide the time between the end of each major canon Arc, (End of Frieza Saga, End of Cell Saga, Buu Saga) to fit them in.
Also, we don’t benefit at all from committing to it. The suggestion is simply dividing it into 3, not arbitrarily following the conventions of a game to the letter. Especially not when it causes more clutter, not less, which is the whole point of dividing the profile.