Why is the matchmaking so messed up?

Yea season 17 is a clear evidence of the broken system, over 30% of all players reached masters. Now they "tweaked" the amount of points required so the problem still exists and they might have reduced the number of players reaching masters but it will end up in the same situation because it is only delayed because people need to put in even more time. They calim they want 1% of all players to reach masters. WELL your old system before masters already worked in that sense so why change? Well because majority of people are not that good and they felt like they didnt improve because they didnt wanna improve so they made sure that no matter the skill you can experience rank symbols Platinum and above only by wasting enough time into it without any real sense of achievement or progress.