The ratings for all the non-rookies in the beta are nearly identical to the final roster update of Madden NFL 19 and almost certainly used that data as a base. As an example: I have both the Madden 20 beta and Madden 19 on in front of me and I just spot-checked Aaron Rodgers and Randall Cobb. Between the two games, Rodgers ratings are nearly identical, and Cobb's ratings are exactly identical.
The rookies in the M20 beta (and also veterans who were not present in the final M19 roster update such as Jason Witten and Kareem Hunt) are all nonfactor placeholder ratings. Kyler Murray will almost certainly not be an OVR 61 rookie QB in the final game (relative to many current NFL backup QBs exceeding that OVR rating in the beta).
More importantly than any of this investigation, you also have literally the guy who makes the ratings telling us the ratings in the beta are not final and you are actively rejecting that statement and suggesting he is misleading people. That is skirting the line very close to an attack against a forum VIP, which is explicitly forbidden by the forum terms of service.
You can drop the crusade now because you are simply wrong. As a forum moderator, I
strongly advise that you do so.