We disagree, but that's OK.The standard in 1992 was completely different to today, but they're happy to use that "record".
It's not fair enough at all.
59 is the record and likely always will be.
What would be fair enough is if they said Mitrovic has the record for most goals in a 46 game second division season, which he does, but that makes his record less impressive since he's had more games to score in than the 42 that used to be available.
The overall standard was worse in 1992, yes. It wasn't an entirely different game/era though. Camsell's 59 goals will still be a record, but I think it's fine that not much is being said about it. Perhaps they should be saying 'in the modern era' more about Mitrovic's record, or something like that.