That's a fair point, but the fact remains that the Packers had the same opportunity as Kansas City had to gain cap space with their quarterback's contract, but they chose not to do it because it would have tied money into Rodgers' contract beyond the 2022 season. It's as clear of an indicator as you can get that the Packers are moving off of AR, likely after this year.
I don't necessarily agree with AR's response, but I understand where he's coming from. The guy is coming off an MVP season, and has given no indication that he's going to retire soon, and the team won't commit to him past this season. I can see how he'd be upset about that.