[2021] Riot changed their policies of champion rework?

I remember the first and older reworks completely transforming the champions, making them totally diferent champions, like galio, swain or akali, for example.

But in the newest reworks they are making the champions the most similar as possible as they used to be. Just look at mundo for example.

Is this something they want to keep doing so champions don't loose their "essence"?

I have to say, personally, sometimes this is good but sometimes is also bad. For me, for a champion like mundo for example that has nothing interesting and unique in his kit, he could have been something totally diferent and unique.