Counter-Strike: Global Offensive
Thanks again for your feedback - those should all be fixed now.
As for your questions, we get our information on a daily basis as changes are made on the PBE, and we report it here every time a change is made. I'm not particularly familiar with Redmercy, but from what I can tell, if he puts out a video every patch, his information is likely to be slightly out of date, based on the delay between getting the information and releasing the video (for example, I see his Patch 7.19 video was released three days ago - there have already been two PBE changes since then, and likely three changes since he sourced his information).
However, while we simply report the numbers as they currently are, Redmercy might make slightly make slightly more of a guess about how those numbers might affect a champion at various stages of the game, which means that any calculations or speculation on his part could be accurate at the time he makes his video.
I hope that answers some of your questions.
I've made those changes - thanks for your feedback!
Also, only now I saw the Ivern buff. You misspelled Ratio to *Ration*.