dark oak and jungel trees have a to low droprate

I needed 5 dark oak trees to get 5 sappaling and the first spawned only 3 sappalings so i needed to go back to the dark oak forest and jungel trees have the same problem,

but 1 cheryblossem tree gave 15 sappelings??? i got more sappalins from one cheryblossem than from 5 dark oak trees and a dark oak tree kost 4 saplings!??

Pls change the drop rate of jungel and dark oak trees mojang