First of all as someone who did the grind between 2019-and 2020, I fully support the changes. The old system was incredibly toxic and took a serious real life tole.
However, I do think it is unfair that those who achieved the old grind will not have access to their highest Rank title, while those that achieve rank 14 going forward keep theirs indefinitely.
If those who achieve the rank in the future keep the rank those like me who did it prior shouldn’t have to regrind a second time to get the title again indefinitely.