One could argue that with more playing time to "catch up" to Bernie, Monday's OPS+ would have been lower. That would be fair, but I don't know if it would be a significant difference.
Yes, Bernie had a better career with the bat with the extra PAs. But I don't know if that makes him "better." As in, Joey Votto has yet to have a better career with the bat as Bernie, but he's certainly a better hitter than Bernie. (despite the fact that they have the exact same amount of hits per 162 games)