I get that JET is a streaky player and when he's cold, he's cold but when he's hot, he can get hot for long, extended periods of the season, especially late in the season and playoffs.
But I haven't seen that this year. What I have seen is a guy that can get hot for periods of a game but not for periods of a season. Check his game logs, it's like he shows up big time or not at all this year and you can never be certain from game to game which JET will be there.
Of course, I am sure there are a ton of legit reasons for this but to me, I see it as a sign of age and deterioration.