I honestly think that people are putting the potential 50-goal mark above everything else.
Caufield will not get 100+ points, 90+ points or, maybe, even a PPG production, like other superstars; McDavid, Draisaitl, Ovechkin, Matthews, Marner, Crosby, Stamkos, Kucherov, Rantanen, MacKinnon, Huberdeau, Gaudreau, Kaprizov, M. Tkachuk, Miller, Panarin, Connor, Kane, Barkov, Crosby, Malkin, plus many others that will regularly produce more than Caufield.
Some will also be dominant offensively and play a shutdown role at the same time, something that Caufield, although decent with his stick in his own zone, will never succeed in doing.
Caufield is a goal scorer who, IMO, in a career year, will get a PPG production or slightly better, but, most likely, he can score between 40 and 60 with a limited amount of assists, making him a 65 to 70 point player in good year, plus the career year where he gets a PPG average, or slightly better, because he scored 60.
PPG players earn between 7M and 8M, not 9.5M, 10M, 10.5M, 11M, 11.5M, 12M.
That 7M to 8M figure will likely go up, along with all salaries as the cap ceiling rises over the next years, but Montreal is also buying 4 RFA years. An 8M AAV contract could well be front-loaded 10M, 10M, 10M, 10M, 6M, 6M, 6M, 6M, with bonuses up front like Carey price's contract.