Yes, I also think that Nicholas Jackson is in a state of grace and that thanks to luck he manages to stay there and put in some good performances. In my opinion we can also consider the player as average, nothing exceptional but in any case if he was chosen by Chelsea it means that He has some good characteristics, I hope he continues to do well
I have no idea why Chelsea want to extend Jackson's contract when his performance isn't that good lol.
Chelsea will be in loss I guess, there's no team want Jackson except Chelsea release him cheaper than his market value. It's really rare to see old players in Chelsea, Jackson will turn 31 in the next 9 years, 31 years old striker in Premier League mostly can't compete with the young players anymore.