I haven't read every page, but this reminds me of when I purchased my second gen in 02. "The lift pump will fail and it will fry your VP44!" They said. Well mine did at 10k mies......It was still great truck and I regret selling it every time I think about it.
Since FCA has made the change on the 2021 models, I'd consider waiting....but if I found a screaming deal on a 2020? I'd do it in a heartbeat.