Lp approximation

Hey guys i just wanted to know what is the view on this matter in the community, cant tell u have many times i have gotten 95-99 lp and had to win 1 more game just to get that missing 1-5 lp, i think riot should put a lp approximation system to get to series from 95 lp or for the very least 99lp i know it would make getting to series easier but was just wondering if that would be a good idea, thanks for reading.